Errors of convchecklibrary can be fixed using makelibrary (fix gsm only) or finalizelibrary (fix gsm and source too).
Convchecklibrary can be used to detect changes in an additional library (Library_base in your case).
This error says that possibly “Model Element” in AC22 is different than in Library_base. How did you get “Model Element.gsm”? We don’t ship them in the LibDev Toolkit. Is ACLib devkit something else?
Another possible cause of the error message: do you have an IDEntrylist.dbe in Library_src?
Library Platform, Software Engineer