Deploying ASP.net Core 2.0 to Azure

Question

I have upgraded an ASP.net Core 1.1 app to ASP.net Core 2.0 with the following steps:

• Changed the Target Framework to 2.0
• Upgraded all Nugget Packages

Now my auto deployment from git runs and says it is successful but the app does not run. I get the following error:

HTTP Error 502.5 - Process Failure

I also added a separate web app deployment slot and tried deploying it there and still get the same result. I have also tried deploying it manually to the slow and no change.

Answer 1

The accepted answer did not fix the problem for me.

Steps Required:

Launch Azure Console within the app and delete the contents of the wwwroot folder then redeploy.

RMDIR wwwroot /S /Q

Also, if you have installed the Application Insights Extension within your app. When the app starts you will receive an exception stating that it can't be found.

To fix this error reinstall the Application Insights Extension from the Extensions blade and restart the app.

The problem with the wwwroot folder is that the old Core 1.1 files are not overwritten. Removing the contents of the directory resolves the problem.

Answer 2

I had the same problem, which was caused by files leftover from a previous .NET Core 1.1 deployment. The easiest way to fix this is to check the "Remove additional files at destination" under the File Publish Options in your Publish Settings when publishing to Azure from VS.