To start, navigate back to your home directory regardless of which directory you are currently in.

Example: prashanth:~/Projects/angular2$ cd ----> prashanth:~$

After that, execute the following commands:

npm bin -g
Outputs---> /usr/bin

Next,

sudo npm rm -g @angular/cli

Clear the npm cache,

npm cache clear

Then proceed to install angular-cli globally,

sudo npm install -g @angular/cli

Now you are all set, type

ng -v

and verify the installed version.

This is a recurring issue that is not specific to any particular version of Ubuntu.

Update (August 26, 2018):

To troubleshoot, use the command npm list -g --depth=0 and check if

@angular/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="33505f5a734b1d4b1d4">[email protected]</a>

appears in the output.

If it does not appear, it is likely that Angular was installed locally. To resolve this, follow Robert's method outlined here.

---

If the problem persists, consider reinstalling Angular entirely:

• npm uninstall -g @angular/cli
• npm cache clear --force
• npm install -g @angular/cli
  
  
• If you are using an older version of Angular, replace @angular/cli with angular-cli.

If you have installed node through a different method, refer to Edgar's approach mentioned here.

For a global installation, simply execute the following command:

npm install -g @angular/cli

Next, run this additional command:

npm link @angular/cli

If you encounter any issues, try restarting your system.

Should that fail to resolve the problem...

---

Don't forget to correctly install the angular command-line tools. The proper way is to globally install them using npm:

npm install -g @angular/cli

If you want to install a specific version, use the following command:

npm install -g @angular/cli@x 

(Replace x with the desired version number. For example: npm install -g @angular/cli@7)

This method solved my issue perfectly. press ctrl+T. Then execute the command below.

Before proceeding, ensure that node js is installed on your computer. To check if node js is already installed, enter the following command in your terminal.

node --version

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

Next, install ng packages by running the commands provided in your terminal.

npm install -g @angular/cli@latest

https://i.stack.imgur.com/m3Loj.png

npm link @angular/cli

https://i.stack.imgur.com/9OY7j.png After completing the steps above, everything should work flawlessly. To verify that it's working correctly, run any ng command in your terminal. For example, try running the command below.

ng --version

https://i.stack.imgur.com/3AxAB.png

I encountered a similar issue after installing nodejs from the tar.gz package. Here is what I did to resolve the issue:

1. Removed the nodejs folder (mine was located in the Downloads directory)
2. Eliminated npm and node from my path by deleting them from ~/.profile
3. Followed the instructions to install nvm detailed here
4. Installed npm using sudo apt install npm, then upgraded it with npm install -g npm@latest
5. Updated node to the latest version using nvm install --lts
6. Ran npm install -g @angular/cli

These steps should resolve the issue. If you are still experiencing problems with ng, double-check your environmental variables to ensure they have been set correctly.

When you want to locate where npm installs packages globally, such as the angular/cli, you can use the command below:

npm bin -g

The output of this command will show you the directory where the packages are installed, which may not be included in the PATH environment variable. If you see a message like this:

/some/directory/bin
(not in PATH env variable)

It means that the directory is not part of the PATH environment! To resolve this, you have two options: either change the directory to one that is in the PATH environment (e.g usr/bin) using the command npm config set prefix '/usr':

npm config set prefix '/usr'

Alternatively, you can add the directory to the PATH environment in any way you prefer. One method is to add the following line to your ~/.profile file:

export PATH=/some/directory/bin:$PATH

After making these changes, remember to restart your computer.

According to this source and this one, the problem could be related to memory issues. I was able to resolve it by doubling the RAM from 1024 to 2048.

As mentioned on this site by manuelfink, the issue is related to memory. A minimum of 1GB of RAM is required for installation.

Remember to execute npm cache clean after each attempt.

According to the official documentation for Angular-cli, the installation command should be executed as follows:

$ npm install -g @angular/cli

The same command can be found in the installation section of the official Github repository.

Encountering a similar issue on Ubuntu 16, I opted to run the npm install command with sudo, which resolved the problem.

Node_modules permission is error-free

The update for Angular 2 is now under @angular/cli instead of angular/cli

If you mistakenly installed Angular 2 using the command:

npm install -g angular-cli

Then, you should run:

1. npm install -g @angular-cli

After that, run:

2. npm install -g @angular-cli/latest

Thank you

After troubleshooting, I was able to resolve the issue by following these steps:

1. Upgrade npm to the latest version

   npm install -g npm@latest

2. Remove angular-cli if it already exists

npm remove -g angular-cli

3. Clear cache

   npm cache clean

   If you have the latest version of npm, this step may not be necessary as it will correct itself. You can verify with,

   npm cache verify

4. Reinstall angular/cli

npm install -g angular-cli

This solution has proven to be effective for me. The issue, similar to Having Trouble Deleting an Old Angular File, can be resolved by renaming the ng file using the command mv target file new_file_name and then installing Angular CLI with

sudo npm install --unsafe-perm -g @angular/cli

.

Click here for the original source

If you're having trouble, give this easy fix a shot as suggested on https://github.com/angular/angular-cli/issues/10728 by 'Jikaworld'. Then proceed with the rest of the installation commands for Angular. It should do the trick.

sudo npm install -g @angular/cli --unsafe-perm=true --allow-root

Make sure to use the following command for optimal results. This will execute without any issues.

sudo npm install --unsafe-perm -g @angular/cli

When Angular CLI is installed using YARN, it must be done globally to avoid encountering errors. To fix this issue, follow these steps:

sudo yarn global add @angular/cli

Afterward, verify your Angular version by running:

ng --version

If you are using Linux PopOS (Debian/Ubuntu)