- 1 year ago
Unable to run npm from Powershell
If you are unable to run npm
from PowerShell, you can try the following troubleshooting steps:
Check Node.js Installation: Ensure that Node.js is installed on your system. You can verify this by running the
node -v
command in PowerShell. If Node.js is not installed, download and install it from the official Node.js website (https://nodejs.org).Check
npm
Path: Confirm that thenpm
executable is in the system's PATH environment variable. Open a new PowerShell session and run thenpm -v
command. If you receive a "command not found" error, it means thatnpm
is not in the PATH. You can manually add the path tonpm
to the PATH variable or reinstall Node.js, making sure to select the option to includenpm
during installation.Restart PowerShell: Sometimes, changes to environment variables like PATH may require restarting the PowerShell session for the changes to take effect. Close PowerShell completely and open a new session to see if
npm
is recognized.Verify PATH Variable: Double-check that the PATH environment variable is correctly set. Open the System Properties dialog by right-clicking on "This PC" (or "My Computer") and selecting "Properties". Then, click on "Advanced system settings" and go to the "Advanced" tab. Click on the "Environment Variables" button and look for the PATH variable in the "System variables" section. Ensure that it contains the path to the Node.js installation and the
npm
executable.Disable Antivirus/Firewall: Temporarily disable any antivirus or firewall software that might be blocking the execution of
npm
. Sometimes, security software can interfere with the execution of certain commands.Run PowerShell as Administrator: Launch PowerShell as an administrator to ensure that you have the necessary permissions to run
npm
. Right-click on the PowerShell shortcut and select "Run as administrator". Confirm any UAC (User Account Control) prompts that appear.Verify Execution Policy: Check the PowerShell execution policy to ensure that it is not preventing the execution of scripts or commands. Run PowerShell as administrator and execute the following command:
powershellGet-ExecutionPolicy
If the policy is set to "Restricted", it may be preventing the execution of
npm
. To change the execution policy, run PowerShell as administrator and execute the following command:powershellSet-ExecutionPolicy RemoteSigned
Choose the appropriate execution policy based on your security requirements.
By following these steps, you can troubleshoot and resolve issues with running npm
from PowerShell. Ensure that Node.js is installed correctly, the PATH environment variable is set up properly, and any necessary permissions are granted to execute npm
commands.