The error is that CVS uses the directory "EmptyDir" instead of a list of all directories / projects of the modul and for that no file of the modul has been tagged (that's what I expected).
I like to setup version management with WBIMB 5.0.3 and the Eclipse-plugin CVS. Especially I try to use modules (defined in CVSROOT\modules) for tagging several projects in one single step. This faile ...