AndroMDA is not generating code

Question

I have recently started with AndroMDA and was trying to write a application. I am doing following:

• created project using AndroMDA archetype
• created two entity classes
• created two value object classes for above two entities
• created a service class

Now when I run mvn install maven couldn't find my entity classes, nor my value object classes.

I had just generated these files (with mvn install I did before giving a reference of entities to service class).

My question is why is AndroMDA not creating these classes before using them?