Question

我有这个程序课：

using Microsoft.CodeAnalysis.CSharp.Scripting;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace RoslynExperiment
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            var result = ComputeAsync("1+2");
            Console.WriteLine(result.Result);
        }

        private static async Task<int> ComputeAsync(string formula)
        {
            return await CSharpScript.EvaluateAsync<int>(formula);
        }
    }
}

但是当我调用ComputeAsync时，出现此错误：

System.IO.FileNotFoundException: 'Could not load file or assembly 'System.Runtime, Version=4.1.2.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.'

Inner Exception
FileNotFoundException: Could not load file or assembly 'System.Runtime, Version=4.0.20.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.

为什么当我尝试执行脚本时会出现此异常？我该如何解决？

Answer 1

这是Visual Studio和.Net的已记录问题。尝试将目标框架更改为netstandard2.0。

或者，您可以尝试将以下内容添加到.csproj中：

<ItemGroup>
  <PackageReference Include="Legacy2CPSWorkaround" Version="1.0.0">
    <PrivateAssets>All</PrivateAssets>
  </PackageReference>
</ItemGroup>

当我尝试运行脚本时，罗斯林崩溃

1 个答案: