Invalid file geodatabase release.

[MaiaPeck]

After I used ArcGIS pro to open a file geodatabase that I created in ArcGIS 10.2.2 ( ! ) I can no longer open it in either version, and I get the message:Failed to connect to database. This release of the geodatabase is either invalid or out of data. [Invalid geodatabase release]

Is there something I can do to be able to open this geodatabase in either version?

Thanks. Lots of work in that geodatabase....

[JamesMacKay3]

Hi Maia, have you tried this tool?

http://resources.arcgis.com/en/help/main/10.2/#/Recover_File_Geodatabase/00170000017p000000/ 

I would make a copy of your File GDB and test it against the copy, it looks like there could be some limitations: "The Recover File Geodatabase tool can only recover simple feature classes and tables. Complex data and relationships will not be recovered."

[MarinProdan]

great work, thx. This worked for me