Problem with Forge tutorial sample app

I am trying the first app using Forge. I am following the tutorial instructions given on the following page.

Part 3: Change the front end with the UI kit (atlassian.com)

I get the following error and my sample app does not work. Can you suggest what could be wrong?

Failed to run init function: TypeError: removeOldAnalytics is not a function
function() {
    	determineStorageKey();
        setTimeout(bulkPublish, 500);
        removeOldAnalytics();
    }

I would have a read of this thread and the marked solution as another user had the same issue and was able to resolve it.

Thank you Richard,

I am new to this community and got overwhelmed by a large number of queries posted. I will do the necessary search before posting questions.

No problem. Hope it solves your issue.