How to use webpack V5+ in yarn start

How to use webpack V5 in yarn start

Did you remove node_modules folder and re installing?

I have the same issue, I tried upgrading to v5.0.0 but I then got a JS out of memory exception. So I removed my package-lock.json and deleted the folder node_modules manually and I ran npm i from scratch. I am also now getting this same error, on npm run start on npm run build and on all CI/CD pipelines. Any ideas?

i have the same error

do you have node_modules out side the project folder?

Nope same level as src, public and where package.json is

What output do you get when running npm why webpack?
(same question if you use yarn, yarn why webpack)

yarn why v1.22.17
[1/4] 🤔  Why do we have the module "webpack"...?
[2/4] 🚚  Initialising dependency graph...
[3/4] 🔍  Finding dependency...
[4/4] 🚡  Calculating file sizes...
=> Found "webpack@4.44.2"
info Reasons this module exists
   - "react-scripts" depends on it
   - Hoisted from "react-scripts#webpack"
info Disk size without dependencies: "3.57MB"
info Disk size with unique dependencies: "13.64MB"
info Disk size with transitive dependencies: "33.61MB"
info Number of shared dependencies: 140
=> Found "frappe-gantt-react#webpack@4.29.6"
info Reasons this module exists
   - "frappe-gantt-react#react-scripts" depends on it
   - Hoisted from "frappe-gantt-react#react-scripts#webpack"
info Disk size without dependencies: "10.34MB"
info Disk size with unique dependencies: "20.45MB"
info Disk size with transitive dependencies: "40.43MB"
info Number of shared dependencies: 141
✨  Done in 0.60s.

upgrade react-scripts to fix the issue

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How to use webpack V5+ in yarn start #11761