Harmony: IL Compile Error

[Hill-98]

I'm writing a Mod and patching a method, but no matter what I do, Harmony keeps throwing the following exception message:

HarmonyLib.HarmonyException: IL Compile Error (unknown location) ---> HarmonyLib.HarmonyException: IL Compile Error (unknown location) ---> System.ExecutionEngineException: String conversion error: Illegal byte sequence encounted in the input.
  at (wrapper managed-to-native) System.Reflection.Assembly.get_code_base(System.Reflection.Assembly,bool)
  at System.Reflection.Assembly.GetCodeBase (System.Boolean escaped) [0x00000] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at (wrapper dynamic-method) System.Reflection.Assembly.DMD<System.Reflection.Assembly::get_CodeBase>(System.Reflection.Assembly)
  at System.Reflection.AssemblyName.Create (System.Reflection.Assembly assembly, System.Boolean fillCodebase) [0x00010] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at System.Reflection.RuntimeAssembly.GetName (System.Boolean copiedName) [0x0000e] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at System.Reflection.Assembly.GetName () [0x00000] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at MonoMod.Utils.MMReflectionImporter.ImportReference (System.Reflection.Assembly asm) [0x00012] in <6733e342b5b549bba815373898724469>:0 
  at MonoMod.Utils.MMReflectionImporter._ImportReference (System.Type type, Mono.Cecil.IGenericParameterProvider context, MonoMod.Utils.MMReflectionImporter+GenericImportKind importKind) [0x00172] in <6733e342b5b549bba815373898724469>:0 
  at MonoMod.Utils.MMReflectionImporter._ImportReference (System.Reflection.MethodBase method, Mono.Cecil.IGenericParameterProvider context, MonoMod.Utils.MMReflectionImporter+GenericImportKind importKind) [0x00113] in <6733e342b5b549bba815373898724469>:0 
  at MonoMod.Utils.MMReflectionImporter.ImportReference (System.Reflection.MethodBase method, Mono.Cecil.IGenericParameterProvider context) [0x00000] in <6733e342b5b549bba815373898724469>:0 
  at Mono.Cecil.ModuleDefinition.ImportReference (System.Reflection.MethodBase method, Mono.Cecil.IGenericParameterProvider context) [0x00013] in <6034b380a22b41a596c9dc29d282c0a9>:0 
  at Mono.Cecil.ModuleDefinition.ImportReference (System.Reflection.MethodBase method) [0x00000] in <6034b380a22b41a596c9dc29d282c0a9>:0 
  at MonoMod.Utils.DynamicMethodDefinition+<>c__DisplayClass3_0.<_CopyMethodToDefinition>g__ResolveTokenAs|1 (System.Int32 token, MonoMod.Utils.DynamicMethodDefinition+TokenResolutionMode resolveMode) [0x00076] in <6733e342b5b549bba815373898724469>:0 
  at MonoMod.Utils.DynamicMethodDefinition+<>c__DisplayClass3_0.<_CopyMethodToDefinition>g__ReadOperand|0 (System.IO.BinaryReader reader, Mono.Cecil.Cil.Instruction instr) [0x001e4] in <6733e342b5b549bba815373898724469>:0 
  at MonoMod.Utils.DynamicMethodDefinition._CopyMethodToDefinition () [0x001ab] in <6733e342b5b549bba815373898724469>:0 
  at MonoMod.Utils.DynamicMethodDefinition.Reload () [0x00122] in <6733e342b5b549bba815373898724469>:0 
  at MonoMod.Utils.DynamicMethodDefinition..ctor (System.Reflection.MethodBase method) [0x0001c] in <6733e342b5b549bba815373898724469>:0 
  at (wrapper dynamic-method) MonoMod.RuntimeDetour.ILHook+Context.DMD<MonoMod.RuntimeDetour.ILHook+Context::Refresh>(MonoMod.RuntimeDetour.ILHook/Context)
  at (wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition.Trampoline<MonoMod.RuntimeDetour.ILHook+Context::Refresh>?-960139264(object)
  at HarmonyLib.Internal.RuntimeFixes.StackTraceFixes.OnILChainRefresh (System.Object self) [0x00000] in <474744d65d8e460fa08cd5fd82b5d65f>:0 
  at MonoMod.RuntimeDetour.ILHook.Apply () [0x00059] in <4e2760c7517c4ea79c633d67e84b319f>:0 
  at HarmonyLib.Public.Patching.ManagedMethodPatcher.DetourTo (System.Reflection.MethodBase replacement) [0x00047] in <474744d65d8e460fa08cd5fd82b5d65f>:0 
   --- End of inner exception stack trace ---
  at HarmonyLib.Public.Patching.ManagedMethodPatcher.DetourTo (System.Reflection.MethodBase replacement) [0x0005f] in <474744d65d8e460fa08cd5fd82b5d65f>:0 
  at HarmonyLib.PatchFunctions.UpdateWrapper (System.Reflection.MethodBase original, HarmonyLib.PatchInfo patchInfo) [0x00033] in <474744d65d8e460fa08cd5fd82b5d65f>:0 
   --- End of inner exception stack trace ---
  at HarmonyLib.PatchClassProcessor.ReportException (System.Exception exception, System.Reflection.MethodBase original) [0x00045] in <474744d65d8e460fa08cd5fd82b5d65f>:0 
  at HarmonyLib.PatchClassProcessor.Patch () [0x00095] in <474744d65d8e460fa08cd5fd82b5d65f>:0 
  at HarmonyLib.Harmony.PatchAll (System.Type type) [0x00008] in <474744d65d8e460fa08cd5fd82b5d65f>:0 
  at HarmonyLib.Harmony.CreateAndPatchAll (System.Type type, System.String harmonyInstanceId) [0x0001e] in <474744d65d8e460fa08cd5fd82b5d65f>:0 
  at PTCGLiveZhMod.Plugin.Awake () [0x00018] in <68769951fc2f472cbd0040d2106a1b64>:0 

Here is the code:

public class Plugin : BaseUnityPlugin
{
    public static string Directory { get { return _directory; } }
    private static string _directory { get; set; }

    private void Awake()
    {
        _directory = Path.GetDirectoryName(Info.Location);

        try
        {
            Harmony.CreateAndPatchAll(typeof(TMP_Text_Patcher));
        }
        catch (Exception ex)
        {
            Logger.LogError(ex);
        }
    }
}

class TMP_Text_Patcher
{
    [HarmonyPatch(typeof(TMP_Text), "font", MethodType.Setter)]
    [HarmonyPrefix]
    static void TMPTextFontPrefix(ref TMP_FontAsset value)
    {
        Console.WriteLine("test");
    }
}

Any help is greatly appreciated!

[Hill-98]

I found the reason: BepInEx/HarmonyX#108