Can't find opentok.js

[PrimeObjects]

I got the following error
Failed to load resource: net::ERR_FILE_NOT_FOUND file:///android_asset/www/js/opentok.js
Question : is opentok.js automatically generated when doing the build? Or where should I get it?

ReferenceError: OT is not defined
at Scope.$scope.loadWebRTC (file:///android_asset/www/app/default/default.js:82:9)
at Scope.$scope.initialForm (file:///android_asset/www/app/default/default.js:30:20)
at new (file:///android_asset/www/app/default/default.js:90:12)
at invoke (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:13012:17)
at Object.instantiate (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:13020:27)
at file:///android_asset/www/lib/ionic/js/ionic.bundle.js:17289:28
at self.appendViewElement (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:48435:24)
at Object.switcher.render (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:46629:41)
at Object.switcher.init (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:46549:20)
at self.render (file:///android_asset/www/lib/ionic/js/ionic.bundle.js:48295:14)

[andreportaro]

Up. My Ionic app doesn't find it either.