Are you running everything as Administrator on the machine where you are installing this? Perhaps you don't have permissions to create the folder.
You can check this by trying to create the folder manually. If that works, try the install again.
I am unable to add it..When I clicked on Build file I was unable to generate out folder.Please find the below screenshot.
I am following above instruction to add JiraSupport Plugin.
Are you running everything as Administrator on the machine where you are installing this? Perhaps you don't have permissions to create the folder.
You can check this by trying to create the folder manually. If that works, try the install again.
