npm ERR! code ELIFECYCLE error [Solved]

# npm ERR! code ELIFECYCLE error [Solved]

To solve the NPM error "npm ERR! code ELIFECYCLE error":

1. Run the npm cache clean --force command to clear your NPM cache.
2. Delete your node_modules and package-lock.json.
3. Install your modules with npm install.
4. Restart your development server.

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npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the build script.
npm ERR! This is probably not a problem with npm. There is likely
additional logging output above.

The first thing you should try is to clear the cache using the following command.

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npm cache clean --force

You can rerun your npm install command after the cache has been cleared.

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npm install

You can use the npm cache verify command if you need to verify the contents of the cache have been cleared.

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npm cache verify

The npm cache verify command verifies the contents and the integrity of the cache folder.

If the error persists, try to reset your NPM registry.

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npm cache clean --force
npm config set registry https://registry.npmjs.org

# 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) and rerun npm install.

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

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

# 👇️ clean npm cache
npm cache clean --force

# 👇️ install packages
npm install

# 👇️ if you use YARN
yarn install

Try to start your development server after running the npm install command.

Another common cause of the error is running low on memory because your server needs more memory to operate than is available.

If you still get the error when installing packages, try to run the npm update command.

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npm update

# 👇️ if you get an error, use the `--legacy-peer-deps` flag
npm update --legacy-peer-deps

The npm update command updates all packages to the latest version and installs missing packages.

# Try to upgrade your version of NPM

Another thing you can try is to upgrade your version of NPM.

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npm install -g npm@latest

# 👇️ If you get a permissions error on macOS / Linux
sudo npm install -g npm@latest

If you get a permissions error on Windows, open CMD as an administrator and rerun the command.

To open CMD as an administrator:

1. Click on the Search bar and type CMD.

2. Right-click on the Command Prompt application and click "Run as administrator".

3. Rerun the command.

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npm install -g npm@latest

npm install -g npm@latest --force

If none of the suggestions helped, try to update your NPM packages.

# Try updating your NPM packages

The npm audit fix command scans your project for vulnerabilities and automatically installs compatible updates to vulnerable dependencies.

The npm audit fix --force command installs major updates to top-level dependencies, which might introduce breaking changes to your project if you rely on older package versions.

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npm install --legacy-peer-deps

npm audit fix --force

Try to restart your terminal and development server after running the commands.

If the error persists, try running the npm update command.

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npm update

The --legacy-peer-deps flag ignores all peer dependencies when installing (in the style on npm version 4 through 6).

Whereas, the --force flag forces NPM to fetch remote resources even if a local copy exists on disk.

# Try to run your npm install command with the --legacy-peer-deps flag

If none of the suggestions helped, try to run your npm install command with the --legacy-peer-deps flag.

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npm install --legacy-peer-deps

If you got the error when installing a specific module, add the --legacy-peer-deps flag at the end of the command.

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npm install react --legacy-peer-deps

Make sure to replace react with the name of the module you're trying to install.

Starting with NPM v7, NPM installs peerDependencies by default, which means that if you already have a peer dependency of the module installed, but not one of the specified by the module versions, NPM throws an error.

The --legacy-peer-deps flag tells NPM to ignore peer dependencies and to proceed with the installation anyway.

This was the default behavior in NPM versions 4 through 6.

In other words, NPM modules name specific versions of their peerDependencies.

If you have a different version of a peer dependency package installed, an error is raised unless you set the --legacy-peer-deps flag.