Azure Web App deploy: Web Deploy cannot modify the file on the destination because it is locked by an external process

Question

I am using the \"Azure Web App Deployment\" build step in VSTS to publish an ASP.NET Core API to an Azure Web App:

Occasionally, this step breaks with the f

Answer 1

Before you open too many cans of worms on this, wait 30-60 seconds and try publishing your app a second time. It appears that this sometimes happens because the stop request that gets issued to the service either returns before the service has completely stopped or maybe Visual Studio is not waiting long enough for this operation to finish. Each time I've encountered the problem, waiting and retrying the publish worked the second time.