System.TypeLoadException on launch: 'Could not resolve type from 0Harmony'

[octatone]

[ben-struss]

Check your Beat Saber\Beat Saber_Data\Managed folder for an old version of 0Harmony.dll (1.2.0.1) and if present, delete it. This might be a leftover from a old IPA version (around march/april 2019) when files were copied directly into this folder instead of IPA\Libs?

[nike4613]

@ben-struss is correct. Because of the load order during startup, it is not terribly feasible check and delete it during startup.

[octatone]

Thanks all, this worked for me

[Techwolf12]

I had this issue as well! It had a old library in the Managed folder. I just deleted the folder, re-verified game files and then patched again with ModAssistant and now it works! Thanks a bunch for this!

Since this issue was hard to find for me I will add some key words:
Could not load type of field 'IPA.Logging.StdoutInterceptor:harmony'
Could not resolve type with token
0Harmony

May I also suggest to change the title to: "Harmony Could not resolve type with token due to old files"? :)