DarthFubuMVC/fubumvc — comment on commit 82fb4cfc4857f33b20c0874456cc3f9c660633c8
File:  line 0
By ahjohannessen:

Why? The build was failing because "template:build" was trying to uninstall WebActivator 1.0 that FubuMVC v637 was depending on. However, the rest of the projects were updated by ripple to v650 that was using WebActivator 1.5.

So you see it is problematic in such scenarios.