Deployment of webapi to azure app service fails with error "This page isn’t working"

Question

Hello All,

I hae deployed a web api project to my azure app and the services will not run.

I get a generic "This page isn’t working" error.

The application runs fine locally
The web deployment reports success.
I have checked via FTP and all of the files are their.
I have restarted the app service in azure console.
I have verified that my routing is working by going to a api endpoint that does not exist "/api/garbageurl" and get a cannot be found error. So the api is there and getting hit.
I've tried to deploy using FTP deploy (same result)

So i can confirm the files are there, the service is there, the service is being hit, but there is only a generic 500 "page isn't working error".

since the API works locally I'm assuming it must be a configuration or service problem with Azure.

I appreciate any help/thoughts anybody might have

Answer 1

Thanks for asking question! For troubleshooting the error in detail, you may refer to this blog on enabling CustomErrors as well as some other logging that may help in diagnose.

You may also check out for web server logs by enabling diagnostic logs: https://learn.microsoft.com/en-us/azure/app-service/web-sites-enable-diagnostic-log

Similar SO link here might be helpful.

Let us know in case issue persists.