Closed Unassigned: Unable to upload file after installing latest AjaxControlToolkit [27864]

I was using AjaxControlToolkit version 7 and now upgraded to version 15. I made all the necessary additions as suggested by
https://ajaxcontroltoolkit.codeplex.com/wikipage?title=Upgrade%20your%20project%20to%20AjaxControlToolkit%20v15.1

https://ajaxcontroltoolkit.codeplex.com/wikipage?title=ToolkitScriptManager%20Removed%20in%20v15.1%2c%20Use%20ScriptManager&referringTitle=Upgrade%20your%20project%20to%20AjaxControlToolkit%20v15.1

But nothing seems to work. Has anyone managed to make upload file working using the new toolkit?