Why is it that PowerShell cannot execute Angular commands?

Recently, I started diving into Angular and encountered an issue using PowerShell in Windows. Every time I run an angular command like:

ng new new-app

or

ng serve

I keep getting this error message:

ng : File C:\Users\< username >\AppData\Roaming\npm\ng.ps1 cannot be loaded because 
running scripts is disabled on this system. For more information, see 
about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:1
+ ng serve
+ ~~
    + CategoryInfo          : SecurityError: (:) [], PSSecurityException
    + FullyQualifiedErrorId : UnauthorizedAccess

Interestingly enough, these commands work perfectly fine when executed in cmd.

javascriptangularpowershellangular-cli

Answer №1

To solve the issue, delete the file ng.ps1 located in the folder 

C:\Users\%username%\AppData\Roaming\npm\
, and then proceed to clear the npm cache at 
C:\Users\%username%\AppData\Roaming\npm-cache\
.

Answer №2

After some troubleshooting, I was able to resolve my issue by executing the following command:

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser

Answer №3

It appears that script1.ps1 is unable to load because the system has disabled running scripts. To learn more about this, please refer to the information regarding Execution Policies at

This issue arises as a security precaution that restricts script execution on your device unless explicit permission is granted. To resolve this, you can open PowerShell with administrative privileges (locate Powershell in the main menu and choose Run as administrator) and input:

set-executionpolicy remotesigned

Answer №4

Step 1

To start the process, you must open the command prompt and execute this specific command.

set-ExecutionPolicy RemoteSigned -Scope CurrentUser

Step 2

Next, run another important command on your system:

Get-ExecutionPolicy

Step 3

In order to check out their policy, enter this command in your command prompt:

Get-ExecutionPolicy -list

Click here for more information.

Answer №5

This issue occurs because of a security precaution that prevents scripts from running on your system without your authorization.

Here is the solution:

  1. Launch Windows PowerShell

  2. Run the following command:

    set-ExecutionPolicy RemoteSigned -Scope CurrentUser

Answer №6

First Step: Find out the Execution Policy for your Machine by running the command below

Get-ExecutionPolicy -List

Second Step: Once you know your identity scope and execution policy, execute the following commands:

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser

If the above steps do not work, make sure to install the minimum required node version for Angular and run the command below

npm install -g @angular/cli

If you need to manage multiple node versions, consider using nvm. Here is a helpful guide on how to install it:

https://www.freecodecamp.org/news/node-version-manager-nvm-install-guide/

Answer №7

This issue arises from a security precaution that prevents scripts from running on your system without your authorization.

To solve this problem, I used the command: Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser

I found a helpful video that assisted me in resolving the issue: https://www.youtube.com/watch?v=a--z7ZV1BqM

You can also give this a try. Hopefully it will help resolve your problem too.

https://i.stack.imgur.com/LiTsV.png

Answer №8

You could test out running 

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
.

Some key points to keep in mind when using this command:

  1. execute ng from the project directory
  2. verify the ng version
  3. ensure that angular cli is properly installed, or reinstall it by executing npm install -g @angular/cli

Answer №9

An efficient hack is to execute the command using a .bat script

This way, it will avoid executing the ps1 version of ng

Answer №10

Launch Windows PowerShell as an administrator, and modify the SetExecution policy to Unrestricted for it to function correctly.

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