System.ArgumentNullException when importing corlib reference

[kenn1ld]

This is the command used:
il2cppinterop generate --input "C:\Users\default\master\dlls\DoThisWork\cpp2il_out" --output "C:\Users\default\master\dlls\DoThisWork\cpp2il_out\yes" --unity "C:\Program Files\Unity\Hub\Editor\2019.4.40f1\Editor\Data\Managed\UnityEngine" --game-assembly "C:\Program Files (x86)\Steam\steamapps\common\Game\GameAssembly.dll"

And yes, the game uses 2019.4.40f1

Here is the output:

warn: Il2CppInterop[0] Opt-In prefixing is obsolete and will be removed in a future version.
info: Il2CppInterop[0] Reading assemblies...
info: Il2CppInterop[0] Done in 00:00:00.0412540
info: Il2CppInterop[0] Reading unity assemblies...
info: Il2CppInterop[0] Done in 00:00:05.2000063
info: Il2CppInterop[0] Creating rewrite assemblies...
info: Il2CppInterop[0] Done in 00:00:00.0194276
info: Il2CppInterop[0] Computing renames...
info: Il2CppInterop[0] Done in 00:00:00.0364797
info: Il2CppInterop[0] Creating typedefs...
info: Il2CppInterop[0] Done in 00:00:00.0699615
info: Il2CppInterop[0] Computing struct blittability...
info: Il2CppInterop[0] Done in 00:00:00.0621876
info: Il2CppInterop[0] Filling typedefs...
info: Il2CppInterop[0] Done in 00:00:00.0594503
info: Il2CppInterop[0] Filling generic constraints...
info: Il2CppInterop[0] Done in 00:00:00.0051644
info: Il2CppInterop[0] Creating members...
info: Il2CppInterop[0] Done in 00:00:01.8102791
info: Il2CppInterop[0] Scanning method cross-references...
info: Il2CppInterop[0] Done in 00:00:01.2528805
info: Il2CppInterop[0] Finalizing method declarations...
info: Il2CppInterop[0] Done in 00:00:02.0265946
info: Il2CppInterop[0] 108 total potentially dead methods
info: Il2CppInterop[0] Filling method parameters...
info: Il2CppInterop[0] Done in 00:00:00.4719411
info: Il2CppInterop[0] Creating static constructors...
info: Il2CppInterop[0] Done in 00:00:00.7042942
info: Il2CppInterop[0] Creating value type fields...
info: Il2CppInterop[0] Done in 00:00:00.0667037
info: Il2CppInterop[0] Creating enums...
info: Il2CppInterop[0] Done in 00:00:00.0517157
info: Il2CppInterop[0] Creating IntPtr constructors...
info: Il2CppInterop[0] Done in 00:00:00.2494994
info: Il2CppInterop[0] Creating non-blittable struct constructors...
info: Il2CppInterop[0] Done in 00:00:00.0170153
info: Il2CppInterop[0] Creating generic method static constructors...
info: Il2CppInterop[0] Done in 00:00:00.0488670
info: Il2CppInterop[0] Creating field accessors...
info: Il2CppInterop[0] Done in 00:00:02.0000869
info: Il2CppInterop[0] Filling methods...
info: Il2CppInterop[0] Done in 00:00:03.2219574
info: Il2CppInterop[0] Generating implicit conversions...
info: Il2CppInterop[0] Done in 00:00:00.0308845
info: Il2CppInterop[0] Creating properties...
info: Il2CppInterop[0] Done in 00:00:00.1127225
info: Il2CppInterop[0] Unstripping types...
info: Il2CppInterop[0] Done in 00:00:00.0431329
info: Il2CppInterop[0] Unstripping fields...
info: Il2CppInterop[0] Restored 1063 fields
info: Il2CppInterop[0] Failed to restore 14 fields
info: Il2CppInterop[0] Done in 00:00:00.0428045
info: Il2CppInterop[0] Unstripping methods...
info: Il2CppInterop[0] Done in 00:00:00.0176294
Unhandled exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
 ---> System.ArgumentNullException: Value cannot be null. (Parameter 'type')
   at Mono.Cecil.Mixin.CheckType(Object type)
   at Il2CppInterop.Generator.Utils.CorlibReferences.ImportCorlibReference(ModuleDefinition module, String namespace, String type) in /home/runner/work/Il2CppInterop/Il2CppInterop/Il2CppInterop.Generator/Utils/CorlibReferences.cs:line 20
   at Il2CppInterop.Generator.Passes.Pass80UnstripMethods.ResolveTypeInNewAssembliesRaw(RewriteGlobalContext context, TypeReference unityType, RuntimeAssemblyReferences imports) in /home/runner/work/Il2CppInterop/Il2CppInterop/Il2CppInterop.Generator/Passes/Pass80UnstripMethods.cs:line 210
   at Il2CppInterop.Generator.Passes.Pass80UnstripMethods.DoPass(RewriteGlobalContext context) in /home/runner/work/Il2CppInterop/Il2CppInterop/Il2CppInterop.Generator/Passes/Pass80UnstripMethods.cs:line 52
   at Il2CppInterop.Generator.Runners.InteropAssemblyGeneratorRunner.Run(GeneratorOptions options) in /home/runner/work/Il2CppInterop/Il2CppInterop/Il2CppInterop.Generator/Runners/InteropAssemblyGenerator.cs:line 173
   at Il2CppInterop.Generator.Il2CppInteropGenerator.Start() in /home/runner/work/Il2CppInterop/Il2CppInterop/Il2CppInterop.Generator/Il2CppInteropGenerator.cs:line 30
   at Il2CppInterop.Generator.Il2CppInteropGenerator.Run() in /home/runner/work/Il2CppInterop/Il2CppInterop/Il2CppInterop.Generator/Il2CppInteropGenerator.cs:line 47
   at Program.<>c.<<Main>$>b__0_0(GenerateCommandOptions opts) in /home/runner/work/Il2CppInterop/Il2CppInterop/Il2CppInterop.CLI/Program.cs:line 43
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Span`1& arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Delegate.DynamicInvokeImpl(Object[] args)
   at System.Delegate.DynamicInvoke(Object[] args)
   at System.CommandLine.NamingConventionBinder.ModelBindingCommandHandler.InvokeAsync(InvocationContext context)
   at System.CommandLine.Invocation.InvocationPipeline.<>c__DisplayClass4_0.<<BuildInvocationChain>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass18_0.<<UseParseErrorReporting>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass13_0.<<UseHelp>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass22_0.<<UseVersionOption>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass20_0.<<UseTypoCorrections>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<<UseSuggestDirective>b__19_0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass17_0.<<UseParseDirective>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<<RegisterWithDotnetSuggest>b__6_0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass9_0.<<UseExceptionHandler>b__0>d.MoveNext()

[chairclr]

Experiencing pretty much the exact same issue.

[ds5678]

This might be fixed by #124

[ds5678]

@kenn1ld @chairclr are you still experiencing the issue? #124 has been merged.

[ds5678]

If this has not been resolved, feel free to reopen it.