XML : Make msbuild tranformed xml on project A, to be copied into the output folder of project B(referencing project A)?

I have 2 projects inside a VisualStudio Solution. Project B references project A.

Situation:

-Project A includes XMLFile.xml
-Using MSBuild Transforms, project A transforms XMLFile.xml file on an AfterBuild Task
-When I build Project A, I see XMLFile.xml correctly transformed on Project A's Output Folder
-BUT... When I build Project B, I see original XMLFile.xml file with no transformation on Project B's Output Folder.

How can I get my transformed file to be copied into my Project B's Output Folder???