Category Archives: How to Fix

io.lettuce.core.RedisCommandExecutionException: errorCode:50010048

io.lettuce.core.RedisCommandExecutionException: error Code:50010048

Caused by: io.lettuce.core.RedisCommandExecutionException: errorCode:50010048
	at io.lettuce.core.ExceptionFactory.createExecutionException(ExceptionFactory.java:135)
	at io.lettuce.core.ExceptionFactory.createExecutionException(ExceptionFactory.java:108)
	at io.lettuce.core.protocol.AsyncCommand.completeResult(AsyncCommand.java:120)
	at io.lettuce.core.protocol.AsyncCommand.complete(AsyncCommand.java:111)
	at io.lettuce.core.protocol.CommandWrapper.complete(CommandWrapper.java:59)
	at io.lettuce.core.protocol.CommandHandler.complete(CommandHandler.java:654)
	at io.lettuce.core.protocol.CommandHandler.decode(CommandHandler.java:614)
	at io.lettuce.core.protocol.CommandHandler.channelRead(CommandHandler.java:565)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	... 1 common frames omitted

An error is reported when calling rediscache. Clean(). The reason may be that redis does not support related commands, such as keys.

Redis: (error) MOVED 8352 192.168.145.128:6380 [How to Solve]

Problem Description:

Redis set, get and other operations have the following errors

 (error) MOVED 8352 192.168.145.128:6380

Cause analysis:

This is generally caused by the fact that the cluster mode is not set when redis cli is started; After starting the cluster, redis cli logs in as an ordinary user and cannot operate the data in the cluster. You need to add – C to log in as a cluster mode before you can operate.

Solution:

Add – C at startup to start cluster mode

redis-cli -c -p 6379

As shown in the figure below, the operation can be successfully performed

Summary

Login in normal mode: you may directly enter the read host and move redirection will occur when storing data. Therefore, you should log in as a cluster. Add the – C parameter to connect with the cluster policy, and the setting data will be automatically switched to the corresponding write host

KaTeX parse error: No such environment: align

CSDN uses KAtex and does not support align, but can use aligned.

$$\begin{aligned}
\frac{\partial l_n}{\partial w}&=-[\frac{y_n}{\sigma(z)}\sigma'(z)x - \frac{1-y_n}{1-\sigma(z)}\sigma'(z)x] \\
&= \frac{\sigma(z)-y_n}{\sigma(z)[1-\sigma(z)]}\sigma'(z)x \\
\end{aligned}$$

(GROANS)

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\begin{aligned} \frac{\partial l}u n}{\partial w}&=-[\ frac{y}{\sigma(z)}\sigma'(z)x – \frac{y-y n}{1-\sigma(z)}\sigma'(z)x] \\\\\\sigma &= \sigma(z)} frac{\sigma(z)-y}{\sigma(z)[1-\sigma(z)}\sigma'(z)x \\\\end{aligned}

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Syntax Error: (unicode error) ‘unicodeescape’ codec can’t decode bytes in position resolution

Error reporting: syntax error: (Unicode error) ‘Unicode scape’ codec can’t decode bytes in position 2-3: tr

For example, in the file, the file path I passed in is like this

sys.path.append('c:\Users\mshacxiang\VScode_ project\web_ ddt')

Cause analysis: the file path can be read in the windows system, but \ has escape meaning in the Python string. For example, \ t can represent tab and \ n represents line feed. Therefore, we need to take some measures to prevent \ from being interpreted as escape characters. Add r before the path to keep the original value of the character. This solves the problem

sys.path.append(r'c:\Users\mshacxiang\VScode_ project\web_ ddt')

org.yaml.snakeyaml.error.YAMLException: java.nio.charset.MalformedInputException: Input length = 1

“C:\Program Files\Java\jdk1.8.0_152\bin\java.exe” -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true “-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2020.2\lib\idea_rt.jar=13065:C:\Program Files\JetBrains\IntelliJ IDEA 2020.2\bin” -Dfile.encoding=UTF-8 -classpath “C:\Program Files\Java\jdk1.8.0_152\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\rt.jar;D:\study\Spring\Springboot\target\classes;D:\JavaEE\maven\repository\org\springframework\boot\spring-boot-starter-web\2.5.3\spring-boot-starter-web-2.5.3.jar;D:\JavaEE\maven\repository\org\springframework\boot\spring-boot-starter\2.5.3\spring-boot-starter-2.5.3.jar;D:\JavaEE\maven\repository\org\springframework\boot\spring-boot\2.5.3\spring-boot-2.5.3.jar;D:\JavaEE\maven\repository\org\springframework\boot\spring-boot-autoconfigure\2.5.3\spring-boot-autoconfigure-2.5.3.jar;D:\JavaEE\maven\repository\org\springframework\boot\spring-boot-starter-logging\2.5.3\spring-boot-starter-logging-2.5.3.jar;D:\JavaEE\maven\repository\ch\qos\logback\logback-classic\1.2.4\logback-classic-1.2.4.jar;D:\JavaEE\maven\repository\ch\qos\logback\logback-core\1.2.4\logback-core-1.2.4.jar;D:\JavaEE\maven\repository\org\slf4j\slf4j-api\1.7.32\slf4j-api-1.7.32.jar;D:\JavaEE\maven\repository\org\apache\logging\log4j\log4j-to-slf4j\2.14.1\log4j-to-slf4j-2.14.1.jar;D:\JavaEE\maven\repository\org\apache\logging\log4j\log4j-api\2.14.1\log4j-api-2.14.1.jar;D:\JavaEE\maven\repository\org\slf4j\jul-to-slf4j\1.7.32\jul-to-slf4j-1.7.32.jar;D:\JavaEE\maven\repository\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;D:\JavaEE\maven\repository\org\springframework\spring-core\5.3.9\spring-core-5.3.9.jar;D:\JavaEE\maven\repository\org\springframework\spring-jcl\5.3.9\spring-jcl-5.3.9.jar;D:\JavaEE\maven\repository\org\yaml\snakeyaml\1.28\snakeyaml-1.28.jar;D:\JavaEE\maven\repository\org\springframework\boot\spring-boot-starter-json\2.5.3\spring-boot-starter-json-2.5.3.jar;D:\JavaEE\maven\repository\com\fasterxml\jackson\core\jackson-databind\2.12.4\jackson-databind-2.12.4.jar;D:\JavaEE\maven\repository\com\fasterxml\jackson\core\jackson-annotations\2.12.4\jackson-annotations-2.12.4.jar;D:\JavaEE\maven\repository\com\fasterxml\jackson\core\jackson-core\2.12.4\jackson-core-2.12.4.jar;D:\JavaEE\maven\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.12.4\jackson-datatype-jdk8-2.12.4.jar;D:\JavaEE\maven\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.12.4\jackson-datatype-jsr310-2.12.4.jar;D:\JavaEE\maven\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.12.4\jackson-module-parameter-names-2.12.4.jar;D:\JavaEE\maven\repository\org\springframework\boot\spring-boot-starter-tomcat\2.5.3\spring-boot-starter-tomcat-2.5.3.jar;D:\JavaEE\maven\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.50\tomcat-embed-core-9.0.50.jar;D:\JavaEE\maven\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.50\tomcat-embed-el-9.0.50.jar;D:\JavaEE\maven\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.50\tomcat-embed-websocket-9.0.50.jar;D:\JavaEE\maven\repository\org\springframework\spring-web\5.3.9\spring-web-5.3.9.jar;D:\JavaEE\maven\repository\org\springframework\spring-beans\5.3.9\spring-beans-5.3.9.jar;D:\JavaEE\maven\repository\org\springframework\spring-webmvc\5.3.9\spring-webmvc-5.3.9.jar;D:\JavaEE\maven\repository\org\springframework\spring-aop\5.3.9\spring-aop-5.3.9.jar;D:\JavaEE\maven\repository\org\springframework\spring-context\5.3.9\spring-context-5.3.9.jar;D:\JavaEE\maven\repository\org\springframework\spring-expression\5.3.9\spring-expression-5.3.9.jar;D:\JavaEE\maven\repository\com\alibaba\druid\1.2.6\druid-1.2.6.jar;D:\JavaEE\maven\repository\org\springframework\boot\spring-boot-configuration-processor\2.5.3\spring-boot-configuration-processor-2.5.3.jar;D:\JavaEE\maven\repository\org\projectlombok\lombok\1.18.20\lombok-1.18.20.jar” com.it.Application
21:47:30.987 [main] ERROR org.springframework.boot.SpringApplication – Application run failed
org.yaml.snakeyaml.error.YAMLException: java.nio.charset.MalformedInputException: Input length = 1
    at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:218)
    at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:176)
    at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:171)
    at org.yaml.snakeyaml.reader.StreamReader.peek(StreamReader.java:126)
    at org.yaml.snakeyaml.scanner.ScannerImpl.scanToNextToken(ScannerImpl.java:1198)
    at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:308)
    at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:248)
    at org.yaml.snakeyaml.parser.ParserImpl$ParseImplicitDocumentStart.produce(ParserImpl.java:213)
    at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:165)
    at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:155)
    at org.yaml.snakeyaml.composer.Composer.checkNode(Composer.java:93)
    at org.yaml.snakeyaml.constructor.BaseConstructor.checkData(BaseConstructor.java:124)
    at org.yaml.snakeyaml.Yaml$1.hasNext(Yaml.java:507)
    at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:198)
    at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:166)
    at org.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:84)
    at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50)
    at org.springframework.boot.context.config.StandardConfigDataLoader.load(StandardConfigDataLoader.java:54)

    at org.springframework.boot.context.config.StandardConfigDataLoader.load(StandardConfigDataLoader.java:36)
    at org.springframework.boot.context.config.ConfigDataLoaders.load(ConfigDataLoaders.java:107)
    at org.springframework.boot.context.config.ConfigDataImporter.load(ConfigDataImporter.java:128)
    at org.springframework.boot.context.config.ConfigDataImporter.resolveAndLoad(ConfigDataImporter.java:86)
    at org.springframework.boot.context.config.ConfigDataEnvironmentContributors.withProcessedImports(ConfigDataEnvironmentContributors.java:121)
    at org.springframework.boot.context.config.ConfigDataEnvironment.processInitial(ConfigDataEnvironment.java:240)
    at org.springframework.boot.context.config.ConfigDataEnvironment.processAndApply(ConfigDataEnvironment.java:227)
    at org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor.postProcessEnvironment(ConfigDataEnvironmentPostProcessor.java:102)
    at org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor.postProcessEnvironment(ConfigDataEnvironmentPostProcessor.java:94)
    at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEnvironmentPreparedEvent(EnvironmentPostProcessorApplicationListener.java:102)
    at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEvent(EnvironmentPostProcessorApplicationListener.java:87)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131)
    at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:82)
    at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:63)
    at java.util.ArrayList.forEach(ArrayList.java:1257)
    at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:117)
    at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:111)
    at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:62)
    at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:374)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:332)
    at org.springframework.boot.SpringApplication.run(SpringApplication.j

LSSchemaConfigureForStore failed with error Error Domain=NSOSStatusErrorDomain Code=-10817 “(null)“ 

LSSchemaConfigureForStore failed with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x15dde658 ed2a1267 ab2496d7 34f186ad ... ec431c65 02d68f35 }, _LSLine=409, WrongSimulatorHash={length = 32, bytes = 0xaf25dda9 e45baa35 610eaabd 5bc09901 ... 9cbe61f3 81d7b9d9 }}

  The solution is as follows:

Errorjava.lang.NullPointerException(no error message)

Solve the error: error: java.lang.nullpointerexception (no error message)

1、 Analyze the cause

Android studio often has dependencies or configuring related errors, which are generally caused by the conflict between Android gradle plugin version and gradle version and project files.

2、 Solution

Change the appropriate Android gradle plugin version and gradle Version (which version is appropriate may need to be tried)

3、 Specific operation

1. Through file – & gt; Project structure… Enter the project structure interface

2. In the project structure interface, select project, click the lower triangle, and select the program version to be installed

Then click OK, and Android studio will automatically make version changes to Android gradle plugin version and gradle version

Note that : Android gradle plugin version matches gradle version. Refer to the link: https://developer.android.com/studio/releases/gradle-plugin?hl=zh -cn

3. Recompile the program and solve the error

Resolve zuul the HTTP status 500 – internal server error error error displayed after startup

Problem Description:

When I use spring cloud to integrate zuul, the project can run, but when I access through the route, I will be prompted with HTTP status 500 – internal server error error

Causes:

The springboot version is inconsistent with the spring cloud starter Netflix zuul version
before modification, my configuration is as follows:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.4</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.cloud</groupId>
    <artifactId>api-gateway-dynamic-route</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>api-gateway-dynamic-route</name>
    <description>api-gateway-dynamic-route</description>
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-netflix-eureka-client -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-netflix-zuul -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
            <version>2.2.9.RELEASE</version>
        </dependency>
    </dependencies>

</project>

Solution

Change the version of springboot to 2.4.8

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.8</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.cloud</groupId>
    <artifactId>api-gateway-dynamic-route</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>api-gateway-dynamic-route</name>
    <description>api-gateway-dynamic-route</description>
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-netflix-eureka-client -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-netflix-zuul -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
            <version>2.2.9.RELEASE</version>
        </dependency>
    </dependencies>
</project>

So far, the problem caused by the version has been solved