Can't find a fix for this error, it will crash a WAV export but FLAC and AIFF are OK once I get past the error, it's just annoying and I tried Admin, Re-install from ISO, earlier versions of Live and the weird thing is I never had this error before I had to re-install W10 this week?

 

Maybe the problem is with the project. Make sure you are not clipping.

 

Maybe a recorded file missing in your "documents/Ableton/etc..." folder,if you reinstalled your OS?
Maybe try to "collect All and save" first?..

 

I just tried to export a little project to Wav, no problem. Windows 10 Ableton 10.0.3. I have Ableton.Live.Suite.v10.0.3.Incl.Patched.and.Keygen-R2R installed, so if you have that other that is not R2R maybe try R2R version

 

It's an R2R and the OS and install of Ableton are both new so no projects have even been saved, AFAIK it's not closing a file in temp recording causing the error, here's all I could find about it:

"There was an error when closing the file" (Win)

• Live Versions: Live 9 - 10
• Operating System: Windows

Live Projects stored in a shared network folder or Dropbox folder can't be saved and an error message reads that this file couldn't be closed:



The instant syncing prevents the correct saving (overwriting) of the Live Set (.als file). Dropbox syncing can be paused temporarily and the Live Set could be overwritten in the Dropbox folder. Later, the syncing can be resumed and the changed files get properly uploaded.

This error appears on Windows computers only when saving (overwriting) an already existing Live Set (.als file). If you don't want to pause syncing but need instant uploading, e.g. when backing up critical projects, just use Save Live Set As... from the File menu and save your changes with a new file name, instead of overwriting the existing document