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

The only thing that workd for me : switching to gradle :(

I have

Parent
  +---dep1
  +---war1 (using dep1)

and I can just cd in war1 and use mvn tomcat7:run-war. I always have to install the whole project before, despite war1 references his parent and the parent references war1 and dep1 (as modules) so all dependencies should be known.

I don't understand what the problem is.