webpack-cli Running multiple commands at the same time is not possible

Question

I am trying to made a full stack project using react and django from the tuto of bad traversy of react and django here react it is a django app i flow the tuto and when it coming to excute the flowing command npm run dev and dev it is "dev":" webpack --mode development ./leadmanager/frontend/src/index.js --output-path ./leadmanager/frontend/static/main.js", i have some errors they are

    (venv) youssef@youssef-HP-EliteBook-840-G3:~/Desktop/fullstack$ npm run dev

> [email protected] dev /home/youssef/Desktop/fullstack
>  webpack --mode development ./leadmanager/frontend/src/index.js --output-path ./leadmanager/frontend/static/

[webpack-cli] Running multiple commands at the same time is not possible

[webpack-cli Found commands: 'bundle', './leadmanager/frontend/src/index.js' webpack-cli Run 'webpack --help' to see available commands and options npm ERR! code ELIFECYCLE npm ERR! errno 2 npm ERR! [email protected] dev: webpack --mode development ./leadmanager/frontend/src/index.js --output-path ./leadmanager/frontend/static/ npm ERR! Exit status 2 npm ERR! npm ERR! Failed at the [email protected] dev script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/youssef/.npm/_logs/2020-12-29T13_19_24_663Z-debug.log

Answer 1

From docs try to use it as following:

webpack --mode development --entry ./leadmanager/frontend/src/index.js --output-path ./leadmanager/frontend/static/main.js

Notice the --entry

And also you might want to change --output-path part to look like: --output-path ./leadmanager/frontend/static/frontend/

Answer 2

Not certain if it's a bug or if there's an updated format to the scripts, but rolling back to webpack-cli verson 4.2.0 works.

npm i -D [email protected]