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1. #Microsoft error reporting 2.2.9 how to#
2. #Microsoft error reporting 2.2.9 code#

#Microsoft error reporting 2.2.9 how to#

To learn how to troubleshoot Azure App Service startup issues, see Troubleshoot ASP.NET Core on Azure App Service。 ASP.NET Core MVC error handling To learn how to troubleshoot startup issues when hosting through IIS, see Troubleshoot ASP.NET Core on IIS. In IISor IIS ExpressWhen running the application, if the process cannot be started, ASP.NET Core moduleWill return 502.5 The process failed. If the binding fails for any reason, the bearer layer will log a critical exception, the dotnet process crashes, and the KestrelWhen running the application on the server, no error page will be displayed. Only when the captured startup error occurs after the host address/port binding, the bearer layer will display an error page for the error. use WebHost, you can use captureStartupErrors with detailedErrors key Configure how the host will behave in response to an error during startup。 Start exception handlingĮxceptions that occur during application startup can only be handled at the bearer layer. Any configured custom error pages or exception handling middleware or filters will not affect this behavior. Any exceptions that occur will be handled by the server. Requests that the application cannot handle will be processed by the server. If the server catches an exception after the header has been sent, the server closes the connection. If the server catches the exception before sending the header, the server will send a 500 internal server error response with no body. In addition to the exception handling logic in the application, the managed application serverSome exception handling will also be performed. The response must be completed or the connection must be aborted.

#Microsoft error reporting 2.2.9 code#

It is recommended to include purely static content in the production error page.Īlso note that once the response header is sent, the status code of the response cannot be changed, and no exception page or handler can be run. The code in the exception handling page may cause an exception.

To Startup.Configure Method to add lines of code: public void Configure ( IApplicationBuilder app, IHostingEnvironment env ) Exception handling code This page passed meta packagemiddle Package provided. To configure the app to display a page with detailed information about the exception, use the developer exception page. This article describes processing ASP.NET Some methods of common errors in Core applications.