Tag Archives: jar

When jar file is running: Failed to load Main-Class manifest attribute from ……Solution

The original address is:
Jar file runtime: Failed to load main-class manifest Attribute from… The solution

Failed to load main-class manifest Attribute from… , which is caused by the unset program entry program. Open the JAR file with WinRAR, expand the meta-INF folder, and check the MANIFEst.MF file. It can be found that main-class is not set, which is the reason of the exception.

reprint please indicate this article address:
Jar file runtime: Failed to load main-class manifest Attribute from… The solution

【Error】gRPC failure=Status{code=UNAVAILABLE, description=io exception, cause=io.netty.channel.

error 1 

18:43:16.408 [main] ERROR org.hyperledger.fabric.sdk.Channel - Channel Channel{id: 1, name: mychannel} Sending proposal with transaction: c6da6324f94b7aa4776727603fc22177e8ad8d50453ed515e2d0e950b9afe367 to Peer{ id: 7, name: peer0.org1.example.com:7051, channelName: mychannel, url: grpcs://peer0.org1.example.com:7051, mspid: Org1MSP} failed because of: gRPC failure=Status{code=UNAVAILABLE, description=io exception, cause=io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: peer0.org1.example.com/120.240.95.34:7051
Caused by: java.net.ConnectException: Connection refused: no further information
	at java.base/sun.nio.ch.Net.pollConnect(Native Method)
	at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:589)
	at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839)
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:832)
}
java.lang.Exception: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at org.hyperledger.fabric.sdk.Channel.sendProposalToPeers(Channel.java:4525) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Channel.sendTransactionProposalToEndorsers(Channel.java:4213) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.sendTransactionProposal(TransactionImpl.java:121) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.endorseTransaction(TransactionImpl.java:106) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.submit(TransactionImpl.java:92) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.ContractImpl.submitTransaction(ContractImpl.java:50) [fabric-gateway-java-1.4.5.jar:?]
	at datasharing.Sample.uploadLog(Sample.java:68) [classes/:?]
	at datasharing.Sample.main(Sample.java:31) [classes/:?]
Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at io.grpc.Status.asRuntimeException(Status.java:533) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:490) ~[grpc-stub-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:700) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:399) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:510) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:66) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:630) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:518) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:692) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:681) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) ~[grpc-core-1.23.0.jar:1.23.0]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[?:?]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: peer0.org1.example.com/120.240.95.34:7051
Caused by: java.net.ConnectException: Connection refused: no further information
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:589) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
18:43:16.441 [main] ERROR org.hyperledger.fabric.gateway.impl.TransactionImpl - No valid proposal responses received. 1 peer error responses: Channel Channel{id: 1, name: mychannel} Sending proposal with transaction: c6da6324f94b7aa4776727603fc22177e8ad8d50453ed515e2d0e950b9afe367 to Peer{ id: 7, name: peer0.org1.example.com:7051, channelName: mychannel, url: grpcs://peer0.org1.example.com:7051, mspid: Org1MSP} failed because of: gRPC failure=Status{code=UNAVAILABLE, description=io exception, cause=io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: peer0.org1.example.com/120.240.95.34:7051
Caused by: java.net.ConnectException: Connection refused: no further information
	at java.base/sun.nio.ch.Net.pollConnect(Native Method)
	at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:589)
	at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839)
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:832)
}
Exception in thread "main" org.hyperledger.fabric.gateway.ContractException: No valid proposal responses received. 1 peer error responses: Channel Channel{id: 1, name: mychannel} Sending proposal with transaction: c6da6324f94b7aa4776727603fc22177e8ad8d50453ed515e2d0e950b9afe367 to Peer{ id: 7, name: peer0.org1.example.com:7051, channelName: mychannel, url: grpcs://peer0.org1.example.com:7051, mspid: Org1MSP} failed because of: gRPC failure=Status{code=UNAVAILABLE, description=io exception, cause=io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: peer0.org1.example.com/120.240.95.34:7051
Caused by: java.net.ConnectException: Connection refused: no further information
	at java.base/sun.nio.ch.Net.pollConnect(Native Method)
	at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:589)
	at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839)
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:832)
}
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.validatePeerResponses(TransactionImpl.java:202)
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.submit(TransactionImpl.java:93)
	at org.hyperledger.fabric.gateway.impl.ContractImpl.submitTransaction(ContractImpl.java:50)
	at datasharing.Sample.uploadLog(Sample.java:68)
	at datasharing.Sample.main(Sample.java:31)

solution

according to the Connection refused: no further information: peer0.org1.example.com/120.240.95.34:7051
the yaml instead of a domain name in the form of: grpcs://peer0.org1.example.com: 7051
in the local hosts file mapping

error 2 

20:33:37.572 [grpc-default-executor-1] ERROR org.hyperledger.fabric.sdk.OrdererClient - OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050}  managed channel isTerminated: false, isShutdown: false, state: TRANSIENT_FAILURE
20:33:37.581 [grpc-default-executor-1] ERROR org.hyperledger.fabric.sdk.OrdererClient - Received error org.hyperledger.fabric.sdk.OrdererClient$1@538c96fe  UNAVAILABLE: io exception
io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at io.grpc.Status.asRuntimeException(Status.java:533) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:442) [grpc-stub-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) [grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) [grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) [grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:700) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) [grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) [grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) [grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:399) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:510) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:66) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:630) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:518) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:692) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:681) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) [grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) [grpc-core-1.23.0.jar:1.23.0]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) [?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) [?:?]
	at java.lang.Thread.run(Thread.java:832) [?:?]
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: orderer.example.com/121.33.215.154:7050
Caused by: java.net.ConnectException: Connection refused: no further information
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:589) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	... 1 more
20:33:37.600 [main] ERROR org.hyperledger.fabric.sdk.OrdererClient - OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050} grpc status Code:io exception, Description UNAVAILABLE, 
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: orderer.example.com/121.33.215.154:7050
Caused by: java.net.ConnectException: Connection refused: no further information
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:589) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
20:33:37.602 [main] ERROR org.hyperledger.fabric.sdk.OrdererClient - OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050}sendTransaction error Channel mychannel, send transaction failed on orderer OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050}. Reason: UNAVAILABLE: io exception
org.hyperledger.fabric.sdk.exception.TransactionException: Channel mychannel, send transaction failed on orderer OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050}. Reason: UNAVAILABLE: io exception
	at org.hyperledger.fabric.sdk.OrdererClient.sendTransaction(OrdererClient.java:236) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Orderer.sendTransaction(Orderer.java:164) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5376) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Channel.sendTransaction(Channel.java:5207) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.commitTransaction(TransactionImpl.java:138) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.submit(TransactionImpl.java:96) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.ContractImpl.submitTransaction(ContractImpl.java:50) [fabric-gateway-java-1.4.5.jar:?]
	at datasharing.Sample.uploadLog(Sample.java:68) [classes/:?]
	at datasharing.Sample.main(Sample.java:31) [classes/:?]
Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at io.grpc.Status.asRuntimeException(Status.java:533) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:442) ~[grpc-stub-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:700) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:399) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:510) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:66) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:630) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:518) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:692) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:681) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) ~[grpc-core-1.23.0.jar:1.23.0]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[?:?]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: orderer.example.com/121.33.215.154:7050
Caused by: java.net.ConnectException: Connection refused: no further information
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:589) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
20:33:37.607 [main] ERROR org.hyperledger.fabric.sdk.Channel - Channel mychannel unsuccessful sendTransaction to orderer orderer.example.com:7050 (grpcs://orderer.example.com:7050)
20:33:37.610 [main] ERROR org.hyperledger.fabric.sdk.Channel - Future completed exceptionally: sendTransaction
java.lang.Exception: Channel mychannel failed to place transaction f74ccf9c6b1a8bb17a9f1d242f73b5b7970f2dc48b235dedf8578b2470f9e837 on Orderer. Cause: UNSUCCESSFUL. 
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5415) ~[fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Channel.sendTransaction(Channel.java:5207) [fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.commitTransaction(TransactionImpl.java:138) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.submit(TransactionImpl.java:96) [fabric-gateway-java-1.4.5.jar:?]
	at org.hyperledger.fabric.gateway.impl.ContractImpl.submitTransaction(ContractImpl.java:50) [fabric-gateway-java-1.4.5.jar:?]
	at datasharing.Sample.uploadLog(Sample.java:68) [classes/:?]
	at datasharing.Sample.main(Sample.java:31) [classes/:?]
Caused by: java.lang.Exception: Channel mychannel unsuccessful sendTransaction to orderer orderer.example.com:7050 (grpcs://orderer.example.com:7050)
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5394) ~[fabric-sdk-java-1.4.11.jar:?]
	... 6 more
Caused by: org.hyperledger.fabric.sdk.exception.TransactionException: Channel mychannel, send transaction failed on orderer OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050}. Reason: UNAVAILABLE: io exception
	at org.hyperledger.fabric.sdk.OrdererClient.sendTransaction(OrdererClient.java:236) ~[fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Orderer.sendTransaction(Orderer.java:164) ~[fabric-sdk-java-1.4.11.jar:?]
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5376) ~[fabric-sdk-java-1.4.11.jar:?]
	... 6 more
Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at io.grpc.Status.asRuntimeException(Status.java:533) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:442) ~[grpc-stub-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:700) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0]
	at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:399) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:510) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:66) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:630) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:518) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:692) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:681) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) ~[grpc-core-1.23.0.jar:1.23.0]
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) ~[grpc-core-1.23.0.jar:1.23.0]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[?:?]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: orderer.example.com/121.33.215.154:7050
Caused by: java.net.ConnectException: Connection refused: no further information
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:589) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) ~[netty-transport-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.38.Final.jar:4.1.38.Final]
	at java.lang.Thread.run(Thread.java:832) ~[?:?]
Exception in thread "main" org.hyperledger.fabric.gateway.ContractException: Failed to send transaction to the orderer
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.commitTransaction(TransactionImpl.java:145)
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.submit(TransactionImpl.java:96)
	at org.hyperledger.fabric.gateway.impl.ContractImpl.submitTransaction(ContractImpl.java:50)
	at datasharing.Sample.uploadLog(Sample.java:68)
	at datasharing.Sample.main(Sample.java:31)
Caused by: java.util.concurrent.ExecutionException: java.lang.Exception: Channel mychannel failed to place transaction f74ccf9c6b1a8bb17a9f1d242f73b5b7970f2dc48b235dedf8578b2470f9e837 on Orderer. Cause: UNSUCCESSFUL. 
	at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395)
	at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2086)
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.commitTransaction(TransactionImpl.java:139)
	... 4 more
Caused by: java.lang.Exception: Channel mychannel failed to place transaction f74ccf9c6b1a8bb17a9f1d242f73b5b7970f2dc48b235dedf8578b2470f9e837 on Orderer. Cause: UNSUCCESSFUL. 
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5415)
	at org.hyperledger.fabric.sdk.Channel.sendTransaction(Channel.java:5207)
	at org.hyperledger.fabric.gateway.impl.TransactionImpl.commitTransaction(TransactionImpl.java:138)
	... 4 more
Caused by: java.lang.Exception: Channel mychannel unsuccessful sendTransaction to orderer orderer.example.com:7050 (grpcs://orderer.example.com:7050)
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5394)
	... 6 more
Caused by: org.hyperledger.fabric.sdk.exception.TransactionException: Channel mychannel, send transaction failed on orderer OrdererClient{id: 17, channel: mychannel, name: orderer.example.com:7050, url: grpcs://orderer.example.com:7050}. Reason: UNAVAILABLE: io exception
	at org.hyperledger.fabric.sdk.OrdererClient.sendTransaction(OrdererClient.java:236)
	at org.hyperledger.fabric.sdk.Orderer.sendTransaction(Orderer.java:164)
	at org.hyperledger.fabric.sdk.Channel.doSendTransaction(Channel.java:5376)
	... 6 more
Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at io.grpc.Status.asRuntimeException(Status.java:533)
	at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:442)
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
	at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:700)
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
	at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:399)
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:510)
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:66)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:630)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:518)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:692)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:681)
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
	at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: orderer.example.com/121.33.215.154:7050
Caused by: java.net.ConnectException: Connection refused: no further information
	at java.base/sun.nio.ch.Net.pollConnect(Native Method)
	at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:589)
	at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:839)
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:832)

solution

remote server port not open, open after no problem.

Failed to execute goal on project XXXX-api: Could not resolve dependencies for pro

Failed to execute goal on project XXXX-api: Could not resolve dependencies for pro***************************************************

today met a maven packaging error, an error message that Could not resolve dependencies for pro * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

the reason is that the package name path was modified during the migration of the module. Try all kinds of cleanup and finally mention cleanup top level pom. XML

in a know reply

execute maven clean, then execute maven install and then repackage the specified module.

if the package is still wrong, please carefully check the reference package path and the real module package path are consistent;

Idea couldn’t be found org.springframework.context .support

use maven spring project management idea, operation times can’t find the org. Springframework. Context. The support.
reason: jar package has not been imported, or idea cannot find this jar package, need to check the configuration of maven
solution:
1. Reimport maven pom file
2. Check that the version of the jar package is compatible with the currently used JDK version
3. 4. Delete the configuration of localrepository in the conf folder in the maven installation directory. Manually specify the address of the localrepository in idea