How to access .svc files in App Service

Question

How to access .svc files in App Service

Jessica Ringberg 0

Im moving an old Asp.net project previously hosted in Azure by another company, to a new azure app service. The project contains a few .svc files, but when deployed to Azure i get 404 whenever the application tries to execute the code inside. Locally i have no issues, but in Azure i can see the files listed but they are not accessible. If i try to remove them from the directory i also get 404, but they are still there? The .svc.cs files are not having the same issue.

Siva Nair 2,340 Reputation points Microsoft External Staff Moderator

2025-03-20T09:51:17.26+00:00

Hi Jessica Ringberg,

Could you please share the exact error message or some screenshots from Log , so that we can help you better to resolve it.

1 answer

Your answer

Siva Nair 2,340 Reputation points Microsoft External Staff Moderator

2025-03-20T09:51:17.26+00:00

Hi Jessica Ringberg,

Could you please share the exact error message or some screenshots from Log , so that we can help you better to resolve it.

Answer 1

Deepanshukatara-6769 16,565 Moderator

Hello Jessica, Welcome to MS Q&A

By following these below steps, this should help you to diagnose and resolve the 404 errors related to your .svc files in Azure App Service.

Confirm that all of the app's files and folders are deployed by comparing the deployment on the hosting system to the contents of the project's publish folder. For more information on the layout of a published ASP.NET Core app, see ASP.NET Core directory structure.
The error is usually caused by a broken deployment on the hosting system, which includes scenarios such as the app being deployed to the wrong folder or the web.config file being missing or malformed. Perform the following steps: Delete all of the files and folders from the deployment folder on the hosting system and redeploy the contents of the app's publish folder. Confirm that the web.config file is present in the deployment and that its contents are correct.

For more detailed instructions, you can view solution:

Troubleshoot ASP.NET Core on Azure App Service and IIS

Please check and let us know if any further ques

Kindly accept answer if it helps

Thanks

Deepanshu

Siva Nair 2,340 Reputation points Microsoft External Staff Moderator

2025-03-21T13:48:14.3+00:00
Hi Jessica Ringberg,

In addition to Deepanshu katara response,

Make sure your Azure App Service is configured to run the correct version of the .NET Framework that your application targets. You can set this in the App Service settings under the "Configuration" section.

Check your web.config file to ensure that it properly configures the service endpoints and handlers for .svc files.

Ensure that WCF activation features are installed and enabled. This is typically managed on the server, but in App Service, you need to ensure your application is set up correctly. This often means ensuring that the correct assemblies are included and your web.config is correctly set up as above.

Check that all necessary dependencies, DLLs, and WCF-related components are deployed with your application. Sometimes not all necessary files are included in the deployment package.

Enable and check the App Service diagnostic logs (detailed error messages and application logging). This can give you more insight into why the .svc files are not accessible. You can enable diagnostics logging via the Azure Portal: App Services > Your App Service > Diagnostics logs.

Double-check the path to your .svc files and ensure they are correctly located relative to the root of your application. Ensure there are no permission issues, although this is less common in Azure App Services.

If your .svc files are in a subdirectory, ensure that you have set up any virtual applications or directories correctly in the Azure portal.

If your service is expected to work over HTTPS, ensure that your app service is configured to support HTTPS and that your endpoints in the configuration reflect this.

As a test, try accessing the .svc file directly in a browser to see if you get a different error message. This can sometimes provide more clues.

If you have any further assistant, do let me know.
Siva Nair 2,340 Reputation points Microsoft External Staff Moderator

2025-03-24T17:35:01.8933333+00:00

Hi Jessica Ringberg,

Just checking back to see if the above response helped you to have a resolution. In case if you have any resolution, please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.

Share via

How to access .svc files in App Service

1 answer

Your answer