Ionic 2.0: Uncaught ReferenceError: ionic is not defined

I’m new to Ionic and Ionic 2.0. I created a simple hello world app. When I load with ionic serve -l, though the page loads correctly, when I take a look at console, I find the error… “Uncaught ReferenceError: ionic is not defined” … How do I fix this ? Looking up online seems to be that I’m missing a reference to ionic.bundle.js …but, that seems to be related to ionic 1.x. Please let me know how I can resolve this error. Thanks.

Can you provide context to where in your application you are receiving the error? It sounds like a bad import, so I’d make sure that your imports are correct and referencing what you think they are.

I am running into the same issue. I have just updated to ionic 2 (2.0.0-beta.15) and did a ionic start testApp --v2 to create the default tabs app.

After that I did an ionic serve --lab. I can see the first tab of the app with content but the other tow tabs are empty. i see the same “Uncaught ReferenceError: ionic is not defined”. I do have bundle.js included and the browser says it loaded the file successfully.

The reference error occurs in the script tag code, that got injected by ionic into the index.html file:

  <script src="cordova.js"></script>
  <script src="build/js/app.bundle.js"></script>


    ionic && ionic.Platform && ionic.Platform.setPlatform("android");

Any ideas?

Seems like the default app does have tabs, but it does not have content in tabs 2 and 3. That was my bad.

I found this one which fixes it for non --lab. So maybe we just have to wait for the next release.

Sorry for delayed response. I’m not sure the source of the error… But, ignoring this error is the approach I took. I like no warnings/errors scenario though.

I’m seeing this too when running ionic serve --lab on a newly created Ionic 2 project.

Any progress on this issue so far?

Same here. While the ignoring of error works i.e. no impact on the app, it requires at least 2 clicks for every app refresh (live reload) and is becoming annoying.

Would sincerely appreciate the work around and/or fix


I have tried going to:

instead of

As she mentioned: Ionic 2 - Uncaught ReferenceError: ionic is not defined

So, now I have no this error.

To summarise it seems the error happens when using the -l flag for the lab view when serving the app, am i right?

Partially, it does when you go to lower-cased address. But ionic went to be defined only when you go to ?ionicPlatform, so no error.

However there is a misspelling in Ionic CLI itself, when you serve application for specified platform or with “lab”, e. g. by typing ionic serve -t android/ios or ionic serve -l, it finally leads to ?ionicplatform.

Workaround: you can type ionic serve -b, wait for Running dev server message and then open it manually: http://localhost:8100/?ionicPlatform=android through a bookmark. But you still may ignore this error ionic is not defined, cause people don’t see any damage after it.

I don’t use those options so have never seen those errors, i mostly do ionic serve -sc, ionic run (android|ios) or at least ionic emulate ios.