相关疑难解决方法(0)

任何机构都可以告诉我regsvr32和RegAsm有什么区别？我的Dll在C#中,那么如何将类导入到c ++中呢？

当我尝试在我的 c# .NET Framework 4.7.2 类库中打开表单时出现此错误。检查自动生成绑定重定向

调用堆栈是

at System.ModuleHandle.ResolveType(RuntimeModule module, Int32 typeToken, IntPtr* typeInstArgs, Int32 typeInstCount, IntPtr* methodInstArgs, Int32 methodInstCount, ObjectHandleOnStack type)
at System.ModuleHandle.ResolveTypeHandleInternal(RuntimeModule module, Int32 typeToken, RuntimeTypeHandle[] typeInstantiationContext, RuntimeTypeHandle[] methodInstantiationContext)
at System.Reflection.RuntimeModule.ResolveType(Int32 metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments)
at System.Reflection.CustomAttribute.FilterCustomAttributeRecord(CustomAttributeRecord caRecord, MetadataImport scope, Assembly& lastAptcaOkAssembly, RuntimeModule decoratedModule, MetadataToken decoratedToken, RuntimeType attributeFilterType, Boolean mustBeInheritable, Object[] attributes, IList derivedAttributes, RuntimeType& attributeType, IRuntimeMethodInfo& ctor, Boolean& ctorHasParameters, Boolean& isVarArg)
at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, Int32 pcaCount, RuntimeType attributeFilterType, Boolean mustBeInheritable, IList derivedAttributes, Boolean isDecoratedTargetSecurityTransparent) …

[最近的笔记]

如果不是 com-visible 方面，这个问题将是这个问题的副本关于 assembly binding。我已经挣扎了好几天，因为我没有意识到我需要改变我的单元测试项目以及 com 可见项目。如果你不想通读我意识到这一点的挣扎，请跳到最后一次更新。

[前言]

我担心这可能是尝试通过 COM Visible Framework 4.7.2 库从 VB6 访问 dotnet 标准 2.0 库的桥梁，但想尝试一下。

你好世界确实有效。（即调用一个返回字符串的简单函数）

但是，当我尝试通过 IDE 或作为 .EXE 运行 VB6 程序时出现此错误。

该错误消息表明该问题发生在 c# dotnet standard2.0 库的代码中。

System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.Extensions.DependencyInjection.Abstractions, 
Version=3.1.0.0, Culture=neutral, 
PublicKeyToken=adb9793829ddae60' or one of its dependencies. 
The system cannot find the file specified.
File name: 'Microsoft.Extensions.DependencyInjection.Abstractions, Version=3.1.0.0,
Culture=neutral, PublicKeyToken=adb9793829ddae60'
at Microsoft.EntityFrameworkCore.Internal.ServiceProviderCache.<>c__DisplayClass4_0.<GetOrAdd>g__BuildServiceProvider|3()
at Microsoft.EntityFrameworkCore.Internal.ServiceProviderCache.<>c__DisplayClass4_0.<GetOrAdd>b__2(Int64 k)
at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
at Microsoft.EntityFrameworkCore.Internal.ServiceProviderCache.GetOrAdd(IDbContextOptions options, Boolean providerRequired) …

我想在.net Core中构建COM对象，然后通过RegAsm注册。

我的.csproj文件：

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFrameworks>netcoreapp2.1;net4.7.2</TargetFrameworks>
    <RuntimeIdentifier>win7-x64</RuntimeIdentifier>
    <Platforms>x64</Platforms>
    <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
  </PropertyGroup>
</Project>

我的program.cs：

using System;
using System.Runtime.InteropServices;

namespace ComExample
{
    [Guid("7ce1e40f-760a-4d81-b70b-61108ed15cb4")]
    [ComVisible(true)]
    public interface IComExampleClass
    {
        IComModelClass ExampleMethod(string param1, string param2);

    }

    [Guid("a8436b3f-3657-4a01-a133-fd333a84cb58")]
    [ClassInterface(ClassInterfaceType.None)]
    [ComVisible(true)]
    public class ComExampleClass : IComExampleClass
    {
        public IComModelClass ExampleMethod(string param1, string param2)
        {
            return new ComModelClass()
            {
                Result = $"{param1} + {param2}"
            };
        }
    }

[Guid("9f5aeede-ec3e-443d-8ba0-9a9f2a6b9e53")]
[ComVisible(true)]
public interface IComModelClass
{
    string Result { get; set; }
}

[Guid("526c6cb5-264d-4629-a894-fff02aeb9ec1")]
[ClassInterface(ClassInterfaceType.None)]
[ComVisible(true)]
public class ComModelClass …