HMR not working

[david718]

Bug report

HMR doesn't work.

Describe the bug

I followed your Learn course in nextjs.org. HMR doesn't work at all.

package.json
{
"name": "hello-next",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo "Error: no test specified" && exit 1",
"dev": "next"
},
"dependencies": {
"next": "^8.1.0",
"react": "^16.8.6",
"react-dom": "^16.8.6"
}
}

To Reproduce

just followed Learn course. All I did was just install react, react-dom, next packages, then made ./pages/index.js

System information

• OS: [WSL(bash)]
• Browser (if applies) [chrome]
• Version of Next.js: [e.g. 8.1.0]

Additional context

[timneutkens]

Please provide more context, what was your pwd, we have tests covering all things HMR and they all pass before every single release.

[david718]

OS: [window]

and I use WSL also, I input CLI(ex) npm run dev("next") in bash in vscode

you need more information?

if you do, plz let me know those informations

thanks

[Timer]

Hi! Try setting the following environment variable:

CHOKIDAR_USEPOLLING=true

If this doesn't work, please let us know -- but we'll likely need a motivated Windows contributor to take a look at this.

[BiscuiTech]

Hello! I just had this issue and I can confirm that CHOKIDAR_USEPOLLING=true fixes it.