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FRONT (2024)
If you have add something packages to Package.Json and npm i has no effect after manually creating your package.json and deleting node_modules, here are some troubleshooting steps:
- 1. Verify package.json validity: Ensure your package.json is valid JSON. Even a small typo can prevent npm from working correctly. Use a JSON validator or a code editor with JSON validation to check for errors. The provided package.json seems valid, but double-check.
- 2. Check npm cache (again): It's worth clearing the npm cache again, just in case:
# npm cache clean --force
3. Delete package-lock.json: If a package-lock.json file exists, delete it. While lockfiles are usually helpful, if it's somehow corrupted, it could cause problems. You'll recreate it in the next step.
4. Use npm install (not npm i): While npm i is shorthand, try the full command:
# npm install
This will regenerate the package-lock.json based on your package.json.
5. Check npm and Node.js versions (again): Ensure your npm and Node.js versions are compatible with the packages you are installing and that they are up-to-date. Update to latest stable if needed.
6. Permissions: If on a system with strict permissions, try temporarily running with elevated privileges (use with caution, it is always advisable to create the project in your user's space which will usually give your user the necessary permissions):
- ◦ Linux/macOS: sudo npm install (again, avoid sudo with npm if possible)
- ◦ Windows: Open your terminal/command prompt as an administrator.>
It's best to fix the underlying file ownership/permission issues or to work in directories where you have sufficient permissions as your regular user.
7. Network connection: Ensure that you have a stable internet connection during the installation process.
8. Try yarn or pnpm: Try other Node package managers. Install yarn (npm install -g yarn) or pnpm (npm install -g pnpm) and then run yarn or pnpm install in your project directory.
9. Create a new project: As a last resort, create a fresh Angular project and then copy over your application code. This helps rule out any underlying issues with your current project setup.
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