I know this is old, but I wanted to put my fix here for others. I had this issue when I made an asset then my editor crashed before it could save it. After relaunching editor and trying to remake asset I was given this message. Restarting editor etc didn’t fix this. As a note perforce is used with this project, but it didn’t end up being related to issue. I went into my folder where asset would be if it would let me create it and guess what it was there already, though it didn’t show up in editor. So I just deleted it and was able to remake in editor no issue. Hope this helps someone.
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