Problem Description: I use idea to create   Meta-inf/Dubbo folder. However, due to idea’s own reasons, two layers of folders cannot be created continuously.

META-INF.dubbo     It was actually created by a   Meta-inf.dubbo folder.

Cause error:

No such extension org.apache.dubbo.rpc.cluster.loadbalance by name XX, no related exception was found, please check whatever related SPI module is missing.

solution:

Create folders layer by layer. Ensure that there are meta-inf and Dubbo folders under the resource, then there is no problem