C# · 12月 23, 2021

奇怪的Assembly.Load错误尝试加载使用C#代码提供程序编译的程序集

我正在尝试使用C#代码提供程序从我的代码编译程序集.

当我使用compilerResult.CompiledAssembly访问已编译的程序集时,一切正常.但是,当我改为执行Assembly.Load(路径)时,我得到以下异常:

System.IO.FileLoadException : Could not load file or assembly
‘C:\Users\Name\Desktop\output.dll’ or one of its dependencies. The
given assembly name or codebase was invalid. (Exception from HRESULT:
0x80131047)

我究竟做错了什么?

这是代码:

[Test]public static void CompileCodeIntoAssembly(){ var code = “public class X { }”; var file = Path.Combine( Environment.GetFolderPath(Environment.SpecialFolder.Desktop),”output.cs”); File.WriteAllText(file,code); using (var provider = new CSharpCodeProvider()) { var parameters = new CompilerParameters { GenerateInMemory = false,// we want the dll saved to disk GenerateExecutable = false,CompilerOptions = “/target:library /lib:\”” + typeof(Class2).Assembly.Location + “\””,OutputAssembly = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop),”output.dll”),}; parameters.ReferencedAssemblies.AddRange(new[] { “System.dll”,typeof(Class1).Assembly.Location,}); var compilerResult = provider.CompileAssemblyFromFile(parameters,file); if (compilerResult.Errors.Count > 0) { compilerResult.Errors.Cast<object>().ToDelimitedString(Environment.NewLine).Dump(); throw new Exception(); } var assembly = Assembly.Load(parameters.OutputAssembly); //var assembly = compilerResult.CompiledAssembly; // this method works var type = assembly.GetTypes().Single(t => t.Name == “X”);}解决方法 如果要从文件路径加载程序集,则需要使用方法 .LoadFile: var assembly = Assembly.LoadFile(parameters.OutputAssembly); ^^^^

根据文档,方法.Load:

Loads an assembly given the long form of its name.

它需要一个程序集名称,如SampleAssembly,Version = 1.0.2004.0,Culture = neutral,PublicKeyToken = 8744b20f8da049e3