Cannot install @angular/cli

Make sure.,you already installed nodejs.

1. npm install -g angular-cli

2. ng help

3. ng new PROJECT_NAME cd PROJECT_NAME ng serve

4. ng serve --host 0.0.0.0 --port 4201 --live-reload-port 49153

This command solved this problem for me:

npm install -g rimraf

The TLS key was a real problem and also install windows-tools does not help. After rimraf and using the right proxy settings and node_modules destination I can install angular-cli.

Can you try from the users directory C:\Users\userName or PC name just as shown in the below figure, and make sure you're not limited to any network related issues !

https://s-media-cache-ak0.pinimg.com/originals/87/50/24/87502456dd8043729b794bf00ee2c7e7.jpg

Try this -

Global Package :

npm uninstall -g @angular/cli
npm cache clean
npm install -g @angular/cli@latest

Local Package :

rm -rf node_modules dist # use rmdir /S/Q node_modules dist in Windows Command Prompt; use rm -r -fo node_modules,dist in Windows PowerShell
npm install --save-dev @angular/cli@latest
npm install

I faced the similar problem. Press Ctrl + C in the command Prompt. It will continue and it will not exit.

1. Run "npm install" inside this project folder to install all dependencies.
2. Make sure you use the latest version of the CLI (upgrade guide below)
3. Run "ng serve" to see the app in action.

Then,

Run the below commands to upgrade the latest version of the CLI - only use "sudo" on Mac/ Linux.

1. sudo npm uninstall -g angular-cli @angular/cli
2. sudo npm install -g @angular/cli

uninstall node.js

delete all node_modules from your directory

delete npm from AppData>Roaming>

delete npm_cache and all newly generated node files from the c:\users[username} directory.

install node.js

add local path as:

new>PATH>c:\users[username}\AppData\Roaming\npm

keep this before Temp path

in cmd: npm -v node -v C:\Users693272円>npm install -g @angular/cli

ng -v

(here 'ng' error should not come)

and now you can go to some other directory also and create your new project as

everything installed is set globally

C:\Users693272円>cd /

C:>d:

D:>ng new app1 -d

HOPE THIS HELPS!

Open PowerShell as admin:

• Set-ExecutionPolicy RemoteSigned
• npm cache clean --force
• npm install -g npm@latest
• npm config set registry http://registry.npmjs.org/
• npm install -g @angular/cli --verbose

1. Start > Run > AppWiz.cpl > Uninstall node.js

2. Delete the node install directory removing remaining folders and files

3. Delete npm folder from Start > Run > %AppData% (AppData\Roaming)

4. If it exists delete npm-cache from the c:\users[username} directory

5. Install node.js the Latest Version and please use the default C:\Program Files\nodejs install path.

6. Open Cmd:

C:\Users\Jeremy>node -v
v17.1.0
C:\Users\Jeremy>npm -v
8.1.2

Nmp via Nvm without node case:

In my case, I had installed npm via nvm on fresh Windows, without installing node first.

The Fix

• Uninstall all npm versions.
• Install node.
• Install npm via nvm again.

Angular Cli installation and all other npm commands worked fine after.