This happens when a previous dxvk install deleted the original fake-dlls created by wine. The new script no longer does this and instead creates a backup, but for that reason it will also fail if the files don't exist.
Run wineboot -u on your wine prefix once, after that, it should work fine.
Edit: I see you're using Proton, in that case you should put the files into steamapps/common/Proton 3.16 Beta/dist/lib64/wine/dxvk (x64) and ...../dist/lib/wine/dxvk (x32), rather than changing individual wine prefixes. The setup script is not intended to be used with Proton.
Run
wineboot -uon your wine prefix once, after that, it should work fine.
This fixes the issue. There is also a noticeable performance improvement coming with 1.0. Thank you for your amazing work.
Edit: I see you're using Proton, in that case you should put the files into
steamapps/common/Proton 3.16 Beta/dist/lib64/wine/dxvk(x64) and...../dist/lib/wine/dxvk(x32), rather than changing individual wine prefixes. The setup script is not intended to be used with Proton.
Will it be necessary to remove the previous DXVK installation in those individual wine prefixes?
Will it be necessary to remove the previous DXVK installation in those individual wine prefixes?
Probably, yes.
Alright, will do. Thank you.
DXVK_HUD reports that the previous version is still in effect. What am I doing wrong?

You should uninstall using the script/method you installed with.
If that was the wineverb you may be out of luck without some manual bodging.
It may be easier to create a new wine prefix.
This is not working.
The steps I have taken based on your feedback:
And then...
- Installed DXVK to Proton 3.16-7 Beta default prefix.
You're not supposed to install it into the default prefix, but copy the files (by hand) to the path that I mentioned above. That's the directory where all the wine libraries etc. are stored, and they are shared with all prefixes.
In practice, this works even without rebuilding the prefixes themselves, although you might need to restore those that you previously installed an older DXVK in.
My apologies for giving you so much troubles. I had followed your instructions but it was not working, hence turning to alternative solutions. It turns out that my Proton installation might have been the problem. I deleted the directory, forced Steam to reinstall it and then installed DXVK 1.0 according to your instructions. This however works out perfectly.
Thank you for your time. Very much appreciated.
Good to hear that you got it to work.
proton 3.16-7x2 2019-02proton 3.16x2 2019-02DXVK_HUDx1 2019-02WINEPREFIX=/home/ian/Games/Steam/steamapps/compatdata/645630/pfxx1 2019-02
I am migrating my games from 0.96 to 1.0 but the new script reports File not found in wine prefix. Is there anything wrong?