CWPPR0067E Installing Conflicts

Currently I’m developing an Composite Application and everything works except for the installation of the Eclipse plugins.

I have 3 plugins inside the Composite Application. Two have a shared depencie. When I delete all my plugins from the workspace to see if the automatic install is working I get the following error:

“CWPPR0067E: THe install request for feature conflicts with another request of the same feature.”

How can i fix this error?