I just experienced this problem for the first time. I keep a dev copy of my database on my local drive, make all my changes to it, then copy it to the production network drive. Before I overwrite the existing production database, I make a copy in an archive
folder.
While exiting my dev copy, I had a problem and MS Access crashed, so I reopened the dev database and it seemed fine, all my forms and reports worked. I then copied it to the hard drive and gave it the "prod" name. I tried running the "prod" version, and
received the above mentioned error message.
I then reopened my dev copy, ran "compact and repair database", recopied it to prod, renamed it, and STILL got the same message.
I then asked another user to open the prod version, and he could open the "prod" version without a problem. I was doing this successfully as recent as two weeks ago without a problem. I have not updated or changed my laptop.
I find it odd that it works okay locally, and when copied to the network and renamed, works for someone else, but not me, Any suggestions?