Uncaught TypeError: Cannot read property 'call' of undefined

[idrismakesgames]

I thought I made a mistake so I wiped my folder and cloned this repo again, switch to branch feature/0312-webpack-dev-server ran yarn install and then ran yarn dev.

no errors in the terminal, but on the page in the console nothing is happening and the following error appears.

Uncaught TypeError: Cannot read property 'call' of undefined at __webpack_require__ (index.js:20) at eval (index.js:2) at Object../src/index.js (index.js:357) at __webpack_require__ (index.js:20) at eval (webpack:///multi_(:8080/webpack)-dev-server/client?:2:18) at Object.0 (index.js:368) at __webpack_require__ (index.js:20) at index.js:69 at index.js:72

Really hope you can help, as I desperately want to follow along, so far this course has been a life saver.

[notdrone]

removing all ^ from the package.json file and then doing npm i fixed the error for me.

[sidouglas]

Course was published June 29, 2018.
Webpack is fickle, and this course no longer works at this step.
( I ran into the exact same thing this evening )

I did:

yarn upgrade-interactive

Check everything - upgrade everything and re-run the dev server.

[1Marc]

I will have to upgrade and test out all of the branches at some point -- thanks all for pointing me in the right direction.

[sojungko]

Had the same issue. Upgrading webpack and webpack-dev-server fixed it for me.

    "webpack": "^4.33.0",
    "webpack-dev-server": "^3.7.1",

[1Marc]

Sorry for the delay, but the dependencies for the feature/0312-webpack-dev-server branch have been updated! 9a7defb