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I have some code that uses a MethodInfo of a generic method found on a generated type. To avoid some reflection, I have the code use the ldtoken Method ldtoken Type call GetMethodFromHandle(RuntimeMethodHandle,RunTimeTypeHandle) Pattern to generate the MethodInfos at compile time. However, if the methodInfo belongs to a generic type and itself is a generic method things get screwy. Here is some code that simply generates a GM that emits an open version of its methodInfo. If I call it to retrieve the method than try to close it over a specific type I get a perplexing exception:: System.Reflection.MethodInfo GM[M]() is not a GenericMethodDefinition. MakeGenericMethod may only be called on a method for which MethodBase.IsGenericMethodDefinition is true. Here is the relevant code:: var aBuilder = AppDomain.CurrentDomain.DefineDynamicAssembly(new AssemblyName("Test"), AssemblyBuilderAccess.RunAndSave); var mBuilder = aBuilder.DefineDynamicModule(aBuilder.GetName().Name, true); var typeBuilder = mBuilder.DefineType("NameSpace.Generic`1",TypeAttributes.AutoClass | TypeAttributes.Sealed | TypeAttributes.Public,typeof(object)); var TypeGenerics = typeBuilder.DefineGenericParameters(new[] { "T" }); var methodBuilder = typeBuilder.DefineMethod("GM", MethodAttributes.Public | MethodAttributes.Static | MethodAttributes.HideBySig); var methodGenerics = methodBuilder.DefineGenericParameters(new[] { "M" }); methodBuilder.SetSignature(typeof(MethodInfo), null, null, Type.EmptyTypes, null, null); var ilgenerator = methodBuilder.GetILGenerator(); var typeBuilderClosedOverT = typeBuilder.MakeGenericType(TypeGenerics); ilgenerator.Emit(OpCodes.Ldtoken, methodBuilder); ilgenerator.Emit(OpCodes.Ldtoken, typeBuilderClosedOverT); ilgenerator.Emit(OpCodes.Call, typeof(MethodBase).GetMethod( "GetMethodFromHandle", BindingFlags.Public | Bin

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