Was attempting to upgrade a series of R19 models to R21 and I keep on the error that the files is corrupt and needs to be repaired manually. I believe several models were created off the a model in the group so the same issue has most likely translated to others.
I have tried detaching, purging, deleting cache files, renaming files, the whole shebang. I have tried looking at the journal but I haven't been able to decipher the issue and find the error.
If anybody is looking for a challenge could you please take a look or offer and suggestions.