sdk is not working

Hello guys, I am trying to run the sdk but this is error I am experiencing

Are you trying to run the server with a custom module named basic example?

Yes that’s what I did

Before starting the server, try running mvn clean install from the module code’s directory.

This is the error it shows

You need to run the command inside the basic-example module’s code directory.

I did it and it shows this error

Could you share the code for this basic example module? Where did you find it?