ng version fails with error "Cannot find module ./package.json"

Question

I tried to install Angular CLI for learning Angular on Node 23 with npm install -g @angular/cli . The install seemed successful but post install while trying to run the ng version command I receive the following error.

An unhandled exception occurred: Cannot find module './package.json'
Require stack:
- C:\Users\sudha\AppData\Roaming\npm\node_modules\@angular\cli\src\noop.js
See "C:\Users\sudha\AppData\Local\Temp\ng-C0Y4aA\angular-errors.log" for further details.

Upon checking the files, I see that noop.js doesn't exist and in the log file mentioned above I see

[error] Error: Cannot find module './package.json'
Require stack:
- C:\Users\sudha\AppData\Roaming\npm\node_modules\@angular\cli\src\noop.js
    at Function._resolveFilename (node:internal/modules/cjs/loader:1259:15)
    at Function._load (node:internal/modules/cjs/loader:1085:27)
    at TracingChannel.traceSync (node:diagnostics_channel:315:14)
    at wrapModuleLoad (node:internal/modules/cjs/loader:218:24)
    at Module.require (node:internal/modules/cjs/loader:1350:12)
    at require (node:internal/modules/helpers:138:16)
    at VersionCommandModule.run (C:\Users\sudha\AppData\Roaming\npm\node_modules\@angular\cli\src\commands\version\cli.js:46:28)
    at VersionCommandModule.handler (C:\Users\sudha\AppData\Roaming\npm\node_modules\@angular\cli\src\command-builder\command-module.js:154:39)

Could you please suggest a way to resolve this issue?

Node 23 is not supported by Angular. Try Node 22 instead. angular.dev/reference/versions — JSON Derulo
– JSON Derulo, Commented Dec 3, 2024 at 7:58
Thank you, that helps. I didn't know that only LTS was supported — SBM
– SBM, Commented Dec 3, 2024 at 8:07
Did downgrading to Node 23 solve your issue? If yes, I will add an answer. However on my system, I could not reproduce this issue. — JSON Derulo
– JSON Derulo, Commented Dec 3, 2024 at 9:07
Yes, but now I've run into a different issue. The Angular CLI version is 19.0.2 but ng version reports Angular v16.2.12. How do I make it use version 19 like the CLI? — SBM
– SBM, Commented Dec 3, 2024 at 11:42

JSON Derulo · Accepted Answer · 2024-12-03 11:49:47Z

0

Angular only supports LTS versions of Node, see the docs. Try downgrading to Node v22.

As a rule of thumb, you should only use even-numbered (18, 20, 22, ...) Node major versions. Odd-numbered (19, 21, 23, ...) Node major versions never enter LTS and won't be supported by Angular. For more information, see the Node.js Releases docs.

answered Dec 3, 2024 at 11:49

JSON Derulo

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