maven-dependency-plugin (goals “copy-dependencies”, “unpack”) is not supported by m2e

Question

I have a fairly simple Maven project:

    
        ...
    
         


        

Answer 1

This is a problem of M2E for Eclipse M2E plugin execution not covered.

To solve this problem, all you got to do is to map the lifecycle it doesn't recognize and instruct M2E to execute it.

You should add this after your plugins, inside the build. This will remove the error and make M2E recognize the goal copy-depencies of maven-dependency-plugin and make the POM work as expected, copying dependencies to folder every time Eclipse build it. If you just want to ignore the error, then you change for . No need for enclosing your maven-dependency-plugin into pluginManagement, as suggested before.

  
    
      org.eclipse.m2e
      lifecycle-mapping
      1.0.0
      
        
          
            
              
                org.apache.maven.plugins
                maven-dependency-plugin
                [2.0,)
                
                  copy-dependencies