node-sass: Command failed when running npm install [Solved]

# node-sass: Command failed when running npm install [Solved]

The error "node-sass: Command failed" occurs for multiple reasons:

1. Using the deprecated node-sass module.
2. Using a version of node-sass that is not compatible with your Node.js version.
3. Using an outdated version of Create React app.
4. Having a glitched node_modules directory.

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error /node_modules/node-sass: Command failed.
Command: node scripts/build.js
1837 error command failed
1837 error gyp ERR! not ok
1837 error gyp info it worked if it ends with ok
Exit code: 1

The two most common ways to solve the error are to:

1. Install the sass package instead of the deprecated node-sass module.
2. Install a version of node-sass that is compatible with your version of Node.js.

The node-sass module has been deprecated, so the best way to solve the error is to use the sass module instead.

Open your terminal in your project's root directory and run the following commands.

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# 👇️ with NPM
npm uninstall node-sass
npm install sass --save-dev

# 👇️ or with YARN
yarn remove node-sass
yarn add sass --dev

The two commands uninstall the deprecated node-sass module and install the sass module.

Try to restart your development server after running the commands.

# Delete your node_modules and reinstall your dependencies

If the error persists, try to delete your node_modules and package-lock.json (not package.json) files, rerun the npm install command and restart your dev server.

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# 👇️  (Windows) delete node_modules and package-lock.json
rd /s /q "node_modules"
del package-lock.json
del -f yarn.lock

# 👇️  (macOS/Linux) delete node_modules and package-lock.json
rm -rf node_modules
rm -f package-lock.json
rm -f yarn.lock

# 👇️ clean npm cache
npm cache clean --force

npm install

Try to restart your development server after reinstalling your modules.

If you want to use the deprecated node-sass module, make sure you have a compatible node-sass version installed for your version of Node.js.

# Alternatively, install a compatible version of node-sass

If you'd rather use the deprecated node-sass module, you have to install a version of node-sass that is compatible with your Node.js version.

The table in this section of the node-sass npm page shows which node-sass version you should install for your version of Node.js.

You can use the node --version command to get your version of Node.js.

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node --version

Here is part of the table.

For example, if your Node.js version is 17, you would install version 7 of node-sass.

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# 👇️ if your Node.js version is 17
npm install node-sass@7 --save-dev

# 👇️ for YARN with Node.js version 17
yarn add node-sass@7 --dev

Your node-sass version has to be compatible with your Node.js version, otherwise, the error occurs.

If the error persists, try to delete your node_modules and package-lock.json (not package.json) files, rerun the npm install command and restart your dev server.

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# 👇️  (Windows) delete node_modules and package-lock.json
rd /s /q "node_modules"
del package-lock.json
del -f yarn.lock

# 👇️  (macOS/Linux) delete node_modules and package-lock.json
rm -rf node_modules
rm -f package-lock.json
rm -f yarn.lock

# 👇️ clean npm cache
npm cache clean --force

npm install

Try to restart your development server after reinstalling your modules.

If the error persists and you use "Create React app", try to update your version of react-scripts.

# Try to update your version of react-scripts

Open your terminal and run the following command to update your version of react-scripts.

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# 👇️ if you use npm
npm install react-scripts@latest

# 👇️ if you use yarn
yarn add react-scripts@latest

If the error persists, try to delete your node_modules and package-lock.json (not package.json) files, rerun the npm install and restart your dev server.

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# 👇️  (Windows) delete node_modules and package-lock.json
rd /s /q "node_modules"
del package-lock.json
del -f yarn.lock

# 👇️  (macOS/Linux) delete node_modules and package-lock.json
rm -rf node_modules
rm -f package-lock.json
rm -f yarn.lock

# 👇️ clean npm cache
npm cache clean --force

npm install

npm install react-scripts@latest

Try to restart your development server after updating your react-scripts version.

# Conclusion

To solve the error "node-sass: Command failed" error:

1. Use the sass package instead of the deprecated node-sass module.
2. Alternatively, install a version of node-sass that is compatible with your version of Node.js.
3. Delete your node_modules directory and your package-lock.json files and rerun npm install.