Unable to unstrip mscorlib

[krulci]

I am having trouble unstripping mscorlib.dll.
I have tried the following two builds:
I compiled the same unity version of the game in mono and included mscorlib.dll from the mono build.
I compiled the same unity version of the game in il2cpp and included mscorlib.dll from the il2cpp build.
Both of them is giving me the following error:

System.ArgumentNullException: 'Value cannot be null. (Parameter 'type')'

I tried both build with the legacy Il2cppAssemblyUnhollower.
Both was able to be unstriped.
How may I fix this issue?

[krulci]

In Il2cppAssemblyUnhollower it is finding this type in mscorlib.dll

However, in Il2CppInterop it is finding this type in System.Private.CoreLib.dll

[ds5678]

I think this has been resolved sometime since you posted your issue because the core library references are constructed differently now.