Went to the ngCordova site and selected to do a custom build, selected sqlite and hit download. The file (ng-cordova.js) starts with the following lines:
angular.module('ngCordova', [
'ngCordova.plugins'
]);
angular.module('ngCordova.plugins', [
'qlite' // <- BUG?
]);
//#### Begin Individual Plugin Code####
// install : cordova plugin add https://github.com/brodysoft/Cordova-SQLitePlugin.git
// link : https://github.com/brodysoft/Cordova-SQLitePlugin/blob/master/README.md
angular.module('ngCordova.plugins.sqlite', [])
I had to change line no 7 (marked with <- BUG by me) to
'ngCordova.plugins.sqlite'
Cheers