Why i cannot run ng command after successfully installing angular cli?

Question

I have installed angular cli 1.5 from the command below:

C:\ANGULAR-WORKBENCH>npm install --global @angular/[email protected]

after completion of installation the following lines were displayed on terminal

+ @angular/[email protected]
added 115 packages and updated 1 package in 105.694s

Then I have tested if it was successfully installed by

C:\ANGULAR-WORKBENCH>ng -version

or

C:\ANGULAR-WORKBENCH>ng

In Both cases it displayed the error

module.js:538 throw err; ^
Error: Cannot find module '@angular-devkit/core' at Function.Module._resolveFilename (module.js:536:15) at Function.Module._load (module.js:466:25) at Module.require (module.js:579:17) at require (internal/module.js:11:18) at Object. (C:\Users\User1\AppData\Roaming\npm\node_modules\@angular\cli\node_modules\@angular-devkit\schematics\src\tree\virtual.js:10:16) at Module._compile (module.js:635:30) at Object.Module._extensions..js (module.js:646:10) at Module.load (module.js:554:32) at tryModuleLoad (module.js:497:12) at Function.Module._load (module.js:489:3)

Why this throws the error? How do i fix this issue?

This isn't something SO can help with, it's a known issue in a third party library. — jonrsharpe
– jonrsharpe, Commented Mar 10, 2018 at 13:46
Is version 1.5.0 a must for you? Otherwise I would take the @latest. I had the same problem as you with a newer version of the cli and by installing the latest version globally and locally the problem was solved. — zgue
– zgue, Commented Mar 10, 2018 at 14:04

NUKE · Accepted Answer · 2019-08-16 14:25:17Z

1

Perhaps the problem is that you are installing and old angular/cli version, try running this commands in your terminal:

npm uninstall -g angular-cli
npm cache clean or npm cache verify #(if npm > 5)
npm install -g @angular/cli@latest

If you need more datailed explanation please check this link: https://stackoverflow.com/a/43931987/8992452, it worked for me.

answered Aug 16, 2019 at 14:25

NUKE

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Comments

Melchia · Accepted Answer · 2018-03-10 14:13:51Z

0

You're using an old angular cli version. Try updating it:

$ npm install -g @angular/cli@^1.6.5

edited Mar 10, 2018 at 14:13

answered Mar 10, 2018 at 14:11

Melchia

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Comments

Vikas · Accepted Answer · 2018-03-10 14:41:02Z

0

All you need to do is run npm i -D @angular-devkit/core in the working directory to fix it.

edited Mar 10, 2018 at 14:41

answered Mar 10, 2018 at 14:02

Vikas

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7 Comments

R. Richards Over a year ago

Actually, no. The OP hasn't even build a new project yet. The command above would fail if you just run that without being in a project folder.

Vikas Over a year ago

Since the issue was cropped up by running ng serve, I assumed that he is currently in the working directory

R. Richards Over a year ago

The OP doesn't mention ng serve. ng and ng -version, but not serve.

Vikas Over a year ago

I have edited my answer, I hope it is correct now @ R. Richards

ng mathitis Over a year ago

@Vikas i did run npm i -D @angular-devkit/core but still gives the same issue

|

K P Ramanath · Accepted Answer · 2023-08-31 07:32:49Z

0

In some systems, ng commands won't work (Usually in company laptops). Anyway, npm commands will run. So the workaround would be in the package.json file to add the relevent scripts to run your project.

For instance, if you want to start your project, the Angular way would be: ng server.

But you can also run npm start.

To build your project, add the ng build <some-options> into the package.json scripts object. For example, scripts: {"build": "ng build --aot=false"}

Then run npm run build.

Hope this helps!

answered Aug 31, 2023 at 7:32

K P Ramanath

1

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