I have created a node.js application in Visual Studio 2015 using the Azure SDK 2.7 and the Node.js Tools.
I have successfully set up CI with BitBucket in my web app
You're probably missing the web.config file which is required if iisnode is used to run node processes behind iis or iis express.
https://github.com/tjanczuk/iisnode/blob/master/src/samples/configuration/web.config