HTTP Error 500.0 - ANCM In-Process Handler Load Failure

Common causes of this issue:

• The specified version of Microsoft.NetCore.App or Microsoft.AspNetCore.App was not found.
• The in process request handler, Microsoft.AspNetCore.Server.IIS, was not referenced in the application.
• ANCM could not find dotnet.

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

For more information visit: https://go.microsoft.com/fwlink/?LinkID=2028526

根据对应编号排查相关异常故障。

更新了代码后，出现以上错误，发现新打包的文件数与旧文件不符合，检查缺少：Microsoft.VisualStudio.Web.BrowserLink.dll

将更新后的打包文件复制到发布目录即可。

还有一种原因可能是：缺少动态dll文件造成，因nuget安装新插件后对应的动态dll没有复制到你的网站或应用（已上线）的更新目录中，检查对应文件即可。