Error while installing angular cli using npm

Question

When I tried to install angular cli using this command

npm install -g @angular/cli

I got below mentioned error

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules\@angular\cli\node_modules\chokidar\node_modules\fsevents): npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"}) npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.1.2 (node_modules\@angular\cli\node_modules\watchpack\node_modules\chokidar\node_modules\fsevents): npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"}) npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.1.2 (node_modules\@angular\cli\node_modules\webpack-dev-server\node_modules\chokidar\node_modules\fsevents): npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"}) npm WARN ajv-keywords@3.2.0 requires a peer of ajv@^6.0.0 but none was installed. npm WARN optional SKIPPING OPTIONAL DEPENDENCY: node-sass@4.9.0 (node_modules\@angular\cli\node_modules\node-sass): npm WARN optional SKIPPING OPTIONAL DEPENDENCY: node-sass@4.9.0 postinstall: `node scripts/build.js npm WARN optional SKIPPING OPTIONAL DEPENDENCY: Exit status 1

any idea whats the issue?

Answer 1

Hello @kartik,

First of all, all the things you have posted are Warnings and not errors.

It means the npm has skipped the dependencies.

This would be solved if you update the npm version to the latest, use this command:

npm i -g npm@latest  

// use sudo if you get permission error.

and try to install again.

Hope this helps.

To know more about Angular, I would recommend you to join Angular online course today.

Thank You!!