ASP.NET Web API – FileNotFoundException: 无法加载文件或程序集

Question

我在 macOS Mojave (10.14.6) 上使用 Visual Studio for Mac [社区] 版本 8.2.3。

我创建了一个 ASP.NET Core API 解决方案。我需要访问第三方 DLL 并将其添加到我的项目中——它显示在 Dependencies/Assemblies 下。我在 POST 方法中访问它。

项目构建良好。在调试模式下运行并访问 POST URL 时出现以下错误：

$ dotnet run
Using launch settings from /Users/vishal/Projects/Triceratops/Properties/launchSettings.json...
: Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager[0]
      User profile is available. Using '/Users/vishal/.aspnet/DataProtection-Keys' as key repository; keys will not be encrypted at rest.
Hosting environment: Development
Content root path: /Users/vishal/Projects/Triceratops
Now listening on: https://localhost:8080
Now listening on: http://localhost:8000
Application started. Press Ctrl+C to shut down.
dbug: HttpsConnectionAdapter[1]
      Failed to authenticate HTTPS connection.
System.IO.IOException: Authentication failed because the remote party has closed the transport stream.
   at System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.PartialFrameCallback(AsyncProtocolRequest asyncRequest)
--- End of stack trace from previous location where exception was thrown ---
   at System.Net.Security.SslState.ThrowIfExceptional()
   at System.Net.Security.SslState.InternalEndProcessAuthentication(LazyAsyncResult lazyResult)
   at System.Net.Security.SslState.EndProcessAuthentication(IAsyncResult result)
   at System.Net.Security.SslStream.EndAuthenticateAsServer(IAsyncResult asyncResult)
   at System.Net.Security.SslStream.<>c.<AuthenticateAsServerAsync>b__51_1(IAsyncResult iar)
   at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Server.Kestrel.Https.Internal.HttpsConnectionAdapter.InnerOnConnectionAsync(ConnectionAdapterContext context)
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
      Request starting HTTP/1.1 POST https://localhost:8080/api/battery application/json 10432
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[3]
      Route matched with {action = "Post", controller = "Battery"}. Executing controller action with signature Double[,] Post(BatteryParamModel) on controller Triceratops.Controllers.BatteryController (Triceratops).
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[1]
      Executing action method Triceratops.Controllers.BatteryController.Post (Triceratops) - Validation state: Valid
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[2]
      Executed action Triceratops.Controllers.BatteryController.Post (Triceratops) in 109.7701ms
fail: Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware[1]
      An unhandled exception has occurred while executing the request.
System.BadImageFormatException: Could not load file or assembly 'RenewablesLibrary, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. An attempt was made to load a program with an incorrect format.

File name: 'RenewablesLibrary, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'
   at Triceratops.Controllers.BatteryController.Post(BatteryParamModel data)
   at lambda_method(Closure , Object , Object[] )
   at Microsoft.Extensions.Internal.ObjectMethodExecutor.Execute(Object target, Object[] parameters)
   at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.SyncObjectResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeActionMethodAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeNextActionFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()
   at Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)


info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2]
      Request finished in 285.122ms 500 text/html; charset=utf-8

我错过了什么/做错了什么？

Answer 1

尝试清理解决方案并重建。有时重新启动 Visual Studio 也会清除此类问题。 如果您使用任何包管理器（如 nuget）进行安装，请参阅 packages.config 文件添加了程序集或在 config.xml 中添加依赖程序集文件。看看bin里面的build文件有没有这个dll。

Answer 2

An attempt was made to load a program with an incorrect format.

用户错误。我的。

我应该一直在使用 x64 DLL，而改为使用 x86 DLL。这似乎已经解决了它。

Answer 3

我有同样的错误，我在包管理器控制台dotnet restore 中写道，它对我有用！