I have been fighting with this issue for the past couple of days and here is what worked for me…
First a bit of background: I had been doing some development with Ionic in Visual Studio 2013 and recently installed Visual Studio 2015 Community. That’s when the problems started and I could no longer use the Ionic project templates.
I tried, many different things, but these are the steps that finally got it working:
-Uninstalled “Visual Studio Tools for Apache Cordova” from Add/Remove programs
-Uninstalled all versions of Node.js (I had two installed, 5.0 and 4.4.1)
-For good measure, after uninstalling node.js, I deleted the node.js folder under “C:\Program Files (x86)”
-I also deleted “C:\Users<user>\AppData\Roaming\npm” & “C:\Users<user>\AppData\Roaming\npm-cache”
-Then I re-ran the Visual Studio Community web installer and chose “Repair”.
When that finished, I was able to create a new project from the Blank Ionic App template.