I am running Vivado on a Windows network and the following message is reported when packaging a design that opens an edit_ip_project:
The edit_ip_project and the original project are still functioning and there does not seem to be an issue with either.
This seems to be a timing issue after the following command is executed in the original project:
This issue occurs only on Windows Networks where the Path contains upper case characters.
The issue has been fixed in Vivado 2014.4.
In Vivado 2014.3 you can close the error window to proceed.