.NET Core 2.1 with Reactjs HTTP Error 502.3 - Bad Gateway


I create new project .Net core 2.1 & reactjs . and then run project but it is not working .I use VS2017 comunication .

HTTP Error 502.3 - Bad Gateway There was a connection error while trying to route the request.

Most likely causes: The CGI application did not return a valid set of HTTP errors. A server acting as a proxy or gateway was unable to process the request due to an error in a parent gateway.

Things you can try: Use DebugDiag to troubleshoot the CGI application. Determine if a proxy or gateway is responsible for this error.

Module AspNetCoreModule Notification ExecuteRequestHandler Handler aspNetCore Error Code 0x80070057

How to run project


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