Cannot add language files. One or more already exist. what is this error?

Error message window showing 'Server responded with 500 (InternalServerError)' while making a POST request. Message indicates a problem with server processing and duplicate language files.

This shows up when I try to check in new files to an existing project.

I even tried to rename the folder (to avoid bugged duplicate) and re-prepare them, still yield the same result.

What went wrong?



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[edited by: RWS Community AI at 1:33 AM (GMT 0) on 5 Jan 2026]
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