Can't install angular-cli on Mac

Question

This is probably very trivial, but I am hitting my head against the wall while I am trying to (unsuccessfully) install angular-cli.

I am following the official angul

Answer 1

Steps to install angular cli.

1. Download Nodejs and Install it. https://nodejs.org/en/
2. Open terminal and type: sudo npm install -g @angular/cli

Just remember that -g represents global scope hence package is installing in root level folders. Hence the command should start with "sudo"

Answer 2

These are the codes I used

sudo npm uninstall -g angular-cli
sudo npm uninstall -g @angular/cli
sudo npm cache clean --force
npm install -g @angular/cli
alias ng="~/node_modules/@angular/cli/bin/ng"

for check

ng --version

Answer 3

After several tries, I finally installed angular-cli successfully via nvm. In detail:

Install nvm:

curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.0/install.sh | bash
export NVM_DIR="/Users/mkotsollaris/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
nvm --version
0.33.0

Then install node through nvm:

nvm install stable
nvm install node

Thereafter, install angular-cli:

npm install -g @angular/cli
mkotsolarissMBP:myapp mkotsollaris$ ng -v

    _                      _                 ____ _     ___
   / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
  / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
 / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
/_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
               |___/

Angular CLI: 1.6.5
Node: 9.4.0
OS: darwin x64
Angular: 5.2.1
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

@angular/cli: 1.6.5
@angular-devkit/build-optimizer: 0.0.41
@angular-devkit/core: 0.0.28
@angular-devkit/schematics: 0.0.51
@ngtools/json-schema: 1.1.0
@ngtools/webpack: 1.9.5
@schematics/angular: 0.1.16
typescript: 2.5.3
webpack: 3.10.0
mkotsolarissMBP:myapp mkotsollaris$ 

Verify that ng works properly:

ng new my-project
cd my-project
ng serve

The app will start on localhost:4200.

Answer 4

Try this:

sudo npm install -g @angular/cli 

Answer 5

This seems like a problem with your node/npm and not with Angular CLI.

Please have a look at the fixing npm permissions page, common errors page, npm issue tracker, or open a new issue if the problem you are experiencing isn't known.

Answer 6

i faced similar issue while installing angular-cli on Mac Mojave.

Correct installation steps are:

1. Install npm using package manager.
2. above step sets the directory owner of /usr/local/lib/node_modules/ to root.

3. execute below command to set the owner to your user:
   sudo chown -R $(whoami) $(npm config get prefix)/{lib/node_modules,bin,share}

4. npm install -g @angular/cli (avoid using sudo)