Azure Website / Visual Studio Online Continuous deployment fails for website

Question

I hooked up a website project in Visual Studio 2013 to continuous deployments on Azure websites. The check starts the build, but I get the following error:

Exception message: Deployment package file (* .zip) not found. Make sure the msbuild PackageAsSingleFile property is not set to False. (type FileNotFoundException) Stack exception: at Microsoft.TeamFoundation.Deployment.Workflow.Activities.FindPackageAndParametersFile.Execute (CodeActivityContext context) in System.Activities.CodeActivity.InternalExecute (ActivityInstanceutor instance. ActivityExecutor.ExecuteActivityWorkItem.ExecuteBody (ActivityExecutor executor, BookmarkManager bookmarkManager, Location resultLocation)

I added the msbuild for argument to PackageAsSingleFile=falsethe build configuration, but it doesn't seem to matter.

Any ideas?

Thanks in advance!