net core HTTP Error 500.31 - Failed to load ASP.NET Core runtime HTTP Error 500.30 - ASP.NET Core

问题一：

HTTP Error 500.31 - Failed to load ASP.NET Core runtime
Common solutions to this issue:
The specified version of Microsoft.NetCore.App or Microsoft.AspNetCore.App was not found.
Troubleshooting steps:
Check the system event log for error messages
Enable logging the application process' stdout messages
Attach a debugger to the application process and inspect

原因

故障原因：
本机发布时的.netcore版本和服务端.netcore版本不一致

解决方法：
修改发布的.netcore版本

或者同步服务器的环境 Download .NET 5.0 (Linux, macOS, and Windows)

 

问题二：

HTTP Error 500.30 - ASP.NET Core app failed to start
Common solutions to this issue:
The app failed to start
The app started but then stopped
The app started but threw an exception during startup
Troubleshooting steps:
Check the system event log for error messages
Enable logging the application process' stdout messages
Attach a debugger to the application process and inspect

 于是我检查了 事件查看器>Windows日志>Appliction> 第一次查看错了 错误日志  查看的是如下日志，我以为是CLR 的问题，折腾了一通发现并没有解决问题。

 redis 没有启动 丢。。。

然后最重要的是浏览器 全部关闭 有点坑呀  好像占用端口了