jQuery upgrades to 1.12 but existing Ember apps crash

Recently there was an upgrade to jquery library version 1.12. It sent existing ember apps to crash on new build.

Uncaught Error: Assertion Failed: Ember Views require jQuery between 1.7 and 2.1 ember-testing.js:1159

Uncaught TypeError: $ is not a function

The reason being ember-cli creates bower.json for you when you run “ember new myapp”. And the bower.json has a version marked for jquery as “^1.11.3" which led to upgrading of jquery while doing a bower install or rather a CI travis build. Since it upgraded to 1.12, a hard coded check to detect if the version is 1.7–1.11 or 2.0 and 2.1 caused the error to occur.

assert(’Ember Views require jQuery between 1.7 and 2.1’, jQuery && (jQuery().jquery.match(/^((1\.(7|8|9|10|11))|(2\.(0|1)))(\.\d+)?(pre|rc\d?)?/) || Ember.ENV.FORCE_JQUERY));

Currently the fix is to lock down your jQuery version in bower.json to 1.11.3 until there is an update from the ember-cli team to set it up properly in bower.json.