I tried to access a geodatabase in ArcCatalog that I had been using in ArcMap all morning and got this message:
Failed to connect to database. This release of the GeoDatabase is either invalid or out of data. [Invalid Geodatabase release]
My coworker was also using feature classes in the geodatabase in ArcMap. At first, after I got the message, a different coworker was still able to access the geodatabase in ArcMap but not in ArcCatalog, and then after a while, none of us were able to access it in ArcMap or ArcCatalog.
We had this issue a few weeks earlier with another geodatabase. With both, we were using them normally as we have been for months/years.
Our GIS specialist said that he had heard of the issue before and suggested a few things:
1) Compact database - didn't work because it said we could only use that function for personal geodatabases, which doesn't make sense because it says in the description that you can use it for file geodatabases
2) Repair geometry - can't do this because we can't access it
3) Export to workspace - also would not run
We opened an old copy and checked geometry, and nothing was wrong with that. I tried to Google the error, and all solutions didn't apply to us - we did not try to access it in Windows Explorer, it is not on an SDE, etc.
Any suggestions? We have accepted the fact that we likely can't repair it, but we want to prevent this issue from happening again in the future.