Uncaught TypeError: undefined is not a function

[sajjadmurtaza]

I have included in my Gemfile

ruby '2.2.3'
gem 'rails', '3.2.22'
gem 'jquery-ui-rails', '~> 4.1.2'

But i'm facing Uncaught TypeError: undefined is not a function error.

and for

ruby "2.1.5"
gem 'rails', '3.2.13'

Its working great. Kindly guide me.

[rosenfeld]

I'd suspect that even without jquery-ui-rails you'd have this error. Rails 3 is not supported for a long time and I suspect it may not work on recent Ruby versions.

[sajjadmurtaza]

@rosenfeld Now what i have to do?

[rosenfeld]

I'd strongly advise you to upgrade to Rails 5 as soon as you can. Until there keep using an older MRI Ruby that works with your current application.