Okay, I've reported with the number Bug 468846. An ecore file is attached. The error occurs with Luna Release 1 (4.4.1) . I never tried another version of Eclipse. In the attachement is the eclipse configuration and an example ecore file.
Thanks & Best regards
Ed Willink wrote on Fri, 29 May 2015 08:57
The Ecore to text serialization appears to trying to construct a
declaration such as: