Cannot read properties of undefined (reading 'write')

Question

Hey guys I have a problem. I'm trying to open a project made in Angular 5.2.0 and its Angular/cli version is 1.7.4, my Angular/cli version is 14.0.7... I executed "npm install" and it doesn't give me any error, but when I write "ng version" to see the local version of angular, it gave me an error "Cannot read properties of undefined (reading 'write')", I tried to execute "ng serve --open" and doesn't work neither.

The steps I followed and their results were: 1.- npm install --> ok; 2.- ng version (to check if the Angular's package local version was installed) --> Error = "Cannot read properties of undefined (reading 'write')"; 3.- ng serve --open (to try open the app) --> Error = same as above.

My final goal is to update the application to newer angular version — ReiDevL
– ReiDevL, Commented Jul 22, 2022 at 0:52
Please replace/supplement images of code/errors with plaintext versions. — jcalz
– jcalz, Commented Jul 22, 2022 at 1:36
Please review the guidelines for How to Ask and try to provide a minimal reproducible example so that others can demonstrate your issue for themselves. — jcalz
– jcalz, Commented Jul 22, 2022 at 1:37

Jake v1 · Accepted Answer · 2022-10-28 17:55:51Z

5

This error message is not helpful at all. It turns out it may be a wrong angular version.

Try downgrading to version 14.0.0.

npm -g i @angular/[email protected]

In my case, I discovered downgrading to any version 14 or below seemed to work, but that may not always be the case.

edited Oct 28, 2022 at 17:55

answered Oct 21, 2022 at 18:51

Jake v1

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1 Comment

torial Over a year ago

This helped me to make progress, thank you

Wei Wang · Accepted Answer · 2022-07-22 02:53:18Z

0

Please recreate incrementally with Angular v14.

answered Jul 22, 2022 at 2:53

Wei Wang

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