Ember JS: define is not defined - ember.js

Question

I recently upgraded my app from Ember 1.3 to Ember 2.4.2. However after deploying it to my production environment with ember build --env production I noticed a couple of issues.
The first issue was that each script/stylesheet tag had a integrity attribute attached to it which made it impossible to load those resources. After some investigation I decided to just replace the value for those attributes to be empty. This allowed the app to download the resources but I then noticed an error in the console that said define is not defined on the minified website.js file that Ember creates. I'm unable to replicate this issue locally because the app runs fine. What steps can I additionally take to investigate this issue? Could this be related to some addon that I have installed, or maybe the SRI integrity attribute that I removed?
Edit: I just tried building and deploying a vanilla app with Ember (e.g. ember new testApp and ember build --env production and encountered the same issue. Is there an issue with Ember that I don't know about? I don't think it's my server since I'm able to render a plain index.html just fine.

Answer 1

I prefer to use the latest NodeJS (v5.8) and the latest npm.
You can update your npm with npm install -g npm.
The best way to install NodeJS
I guess, you have the latest ember-cli. You can update it if you are outside of your project:
$ cd ~
$ npm install -g ember-cli
I just cloned your repository.
$ git clone https://github.com/uioporqwerty/website.git
$ cd website
$ npm install && bower install
$ ember server
Got the following error:
➜ website git:(master) ember s
version: 2.4.2
The Broccoli Plugin: [ConfigLoader] failed with:
Error: Attempting to watch missing directory: config
at EventEmitter.Watcher_addWatchDir [as addWatchDir] (/Users/szines/projects/temp/website/node_modules/broccoli-sane-watcher/index.js:90:11)
at /Users/szines/projects/temp/website/node_modules/ember-cli-broccoli/lib/builder.js:95:35
...
Because of a couple of important files are missing from your ember-cli project, I just run ember init
$ ember init
During this process you see a question. You can check suggested changes with 'd', but it would just remove bootstrap and font-awesome, which is fine, because we will reinstall them with ember install.
[?] Overwrite bower.json? (Yndh) Y
Now we remove all the previous bower and npm package, temp folder and dist folder.
$ rm -rf bower_components node_modules tmp dist
$ npm install && bower install
Install ember-bootstrap and ember-font-awesome:
$ ember install ember-bootstrap
$ ember install ember-font-awesome
Launch the server:
$ ember server
Your app working like a charm. Open localhost:4200 in your browser.
You can build the production:
$ ember build --prod
And all the files will be in /dist folder.
Or run the production version with the server:
$ ember server --prod
Enjoy your new Ember! :)
Update:
You can use ember-cli-update for updating your Ember app:
$ npx ember-cli-update
$ npx ember-cli-update --run-codemods
Source: Update Ember.js app

Answer 2

Zoltan's answer was very helpful in being a part of the solution to my problem. After fixing my local website according to Zoltan's answer I noticed some issues.
First, there was the following error with Ember-Cli 2.4.2:
Could not find module ember-data/-private\system\references\record imported from ember-data/-private/system/references
This issue has been resolved in the master branch of the Github repo for ember-cli but it hasn't made its way to the npm repo. So what I did was uninstall ember-cli with npm remove -g ember-cli and then followed the development instructions on the github repo https://github.com/ember-cli/ember-cli. This fixed that issue.
Additionally, I noticed that my nginx server was not serving js and css files; I tested this by creating a index.html with test.css and test.js and noticed that the server wasn't dishing out those files. Instead of trying to find the issue I noticed my nginx was a bit out of date on my RPI, it was at version 1.6.x, so I thought this would be a good time to update it; I updated it to 1.9.7 by first removing the old version then running this script https://gist.github.com/MattWilcox/402e2e8aa2e1c132ee24. After that I had nginx 1.9.7 but I did somehow have apache2 installed which caused its own headaches with recognizing the default website so I removed it.
Finally, since my settings were overridden I restored /etc/nginx from an rsync backup I have of my pi by just copying over that directory.
Then boom, everything worked. It took a while but everything seems to be working great at https://www.uioporqwerty.com and the qualsys lab report is working fine too https://www.ssllabs.com/ssltest/analyze.html?d=www.uioporqwerty.com so all my settings carried over correctly :)
Glad to have Ember-Cli working correctly.