How to fix error "No webpage was found for the web address:" when I am opening the url for my app service.

Question

Hi community,

I have created one dotnet core web app. Pushed it to repos in azure devops, created a pipeline and deployed it on azure web app services. After creating the release and publishing it on web app, when I am trying to open the URL of web app, I am getting error like "No webpage was found for the web address:", Error:404.

Please help me with it.

Answer 1

Hi @Rajneesh Yadav,

You need to use your app name to replace app_name, the url and api are templates. You need to make sure you have the api method and using correct url to test it.

Please let me summarize, the problem with 404 encountered when deploying webapp to azure app service.

1. First of all, we need to confirm whether the project contains view pages or webapi. Because swagger ui is generally used in the development environment, it usually disappears after publishing to azure, which is the expected behavior.
2. If it contains view pages, then we need to log in to the kudu site (https://app_name.scm.azurewebsites.net), go to the wwwroot folder, and check whether the published files are complete. You can also publish the published files that run well locally by dragging and dropping.

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Best regards,

Jason Pan

Answer 2

Hi JasonPan - MSFT

I commented the local code as below as per your suggestion and then republished it to Azure and it is now working fine. I appended /swagger on my azurewebsites.net URL and I could access my cloud web Api.

// Configure the HTTP request pipeline.
//if (app.Environment.IsDevelopment())
//{
      app.UseSwagger();
      app.UseSwaggerUI();
//}