Error Accessing File Manager

Permalink
Entity of type 'Concrete\Core\Entity\User\User' for IDs uID(0) was not found (0)

The C5 log shows:
Exception Occurred: /home/USERNAME/public_html/updates/concrete5-8.4.3/concrete/vendor/doctrine/orm/lib/Doctrine/ORM/EntityNotFoundException.php:47 Entity of type 'Concrete\Core\Entity\User\User' for IDs uID(0) was not found (0)

It's one of many issues that we have after upgrading to v8.

WebSolutions
 
robran replied on at Permalink Reply
I have the same issue after upgrading. Did you manage to resolve this?
WebSolutions replied on at Permalink Reply
WebSolutions
Unfortunately there was no good solution - upgrading from 7 to 8 was brutal, not seamless and everything from forms to file manager stuff broke.

I believe this specific issue had to do with user ownership of a file, and we just had to manually deal with the exception by changing the core code.
robran replied on at Permalink Reply
Ok, thanks for the reply. I'll see what I can do to get around it.

EDIT: Just duplicated a row in the Users table and gave the new user the ID it was looking for. I could not change the ID on existing users due key constraints. It then seems to load the file manager without any issue.