相关疑难解决方法(0)

我试图将我的网络应用程序从.net core 2.0升级到.net core 2.1我做了:

1)安装Visual Studio Professional 2017预览版15.8.0预览版1.1
2)从这里安装.net核心2.1.3 RC1 SDK:https://www.microsoft.com/net/download/dotnet-core/sdk-2.1 .300-rc1
3)将我的所有aspnetcore nuget软件包更新到最新版本.

做完这两件事后,当我开始我的项目时,我得到了这个屏幕:

HTTP错误502.5 - 进程失败此问题的常见原因:

The application process failed to start
The application process started but then stopped
The application process started but failed to listen on the configured port 

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故障排除步骤

Check the system event log for error messages
Enable logging the application process' stdout messages
Attach a debugger to the application process and inspect 

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有关详细信息,请访问:https: //go.microsoft.com/fwlink/？LinkID = 808681

在我的ASP.NET核心Web服务器的输出窗口中,我得到了这个:

The …