I am using SSIS 2014 and Visual Studio 2013. When I click on Edit Script button of script task no error nothing happens but script editor doesn\'t open. Nothing happens I have i
I ran into this same exact issue. Try installing Sql Server Data Tools 2012 here as well as Sql Server Data Tools 2013 here. I am not sure why you would need both but for some reason the script task when only having SSDT 2013 installed still seemed to want to reference 2012 (see screen shot below).
Hopefully this helps.