Maven doesn't recognize sibling modules when running mvn dependency:tree

Question

I\'m trying to set up a multi-module Maven project, and the inter-module dependencies are apparently not being set up correctly.

I have:

Answer 1

In a Maven module structure like this:

- parent
  - child1
  - child2

You will have in the parent pom this:

  child1
  child2

If you now depend on child1 in child2 by putting the following in your in child2:

  example
  child1

You will receive an error that the JAR for child1 cannot be found. This can be solved by declaring a block including child1 in the pom for parent:

  
    
      example
      child1
      ${project.version}
    
  

child1 will now be build when you run a compile or package etc. goal on parent, and child2 will find child1's compiled files.