Well, then what error? What system? what else? you need to be much more specific and provide the required information.
The error is the foolowing: AEGP plug-in Premiere Pro Import: Can't load Premiere Pro Project, the version # is wrong or the file is corrupt. (5027::12)
But I can use the file in Premiere without any problems. It doesn't seem corrupt.
I'm running Creative Cloud CC on a PC i5. Thanks for your insightful comment Dave, much needed waste of time.
What's the exact version number of your Premiere and exact version number of your After Effects?
How are you "opening" it? Are you importing a Premiere Pro sequence or are you doing it via dynamic link?