Unable to downgrade Angular from version 6 to 5

Question

Recently (May 2018) newer stable version of angular has been released. I have migrated succesfully from version 5 to 6.

But for some reason I wanted to rollback to version 5. I have tried following commands:

npm uninstall -g @angular/cli

it uninstalled the latest version of angular-6.

npm cache clean --force

and then installed

npm install -g @angular/cli@1.7.4

But it gave this error

node version: 8.10.0

npm version: 6.0.0

Try and see if updating to the most recent release of npm solves the issue: `npm install -g npm@latest` — bugs, May 10 '18 at 08:10
`npm ` version please, you have mentioned your node version. what does `npm -v` shows? — Vikas, May 10 '18 at 08:29
@eirenaios the latest version of `npm` is v6.0.1 how could you it be 8.10.0 it's your node version you `npm` version must be 5.6.0 — Vikas, May 10 '18 at 12:26

score 15 · Answer 1 · answered Oct 30 '18 at 13:10

15

Same as the other answer, but this time only commands instead of a difficult to follow screenshot

I wanted to downgrade from 7.0.2 to 6.2.5

ng --version

npm uninstall -g @angular/cli
npm cache clean --force

npm install -g @angular/cli@6.2.5
ng --version

answered Oct 30 '18 at 13:10

score 10 · Accepted Answer · edited May 22 '18 at 01:21

10

you have to update npm...please refer to screenshot...I've sucessfully downgraded angular 6 to angular 5... downgrade from angular 6 to angular 5

edited May 22 '18 at 01:21

Mohammad Kanan

answered May 12 '18 at 12:53

Mhyk Gyver

5

thanks it would be great if you write down all the commands that will help other users easily followup – Suresh Karia Aug 02 '18 at 08:09

Matias Miraglio · Answer 3 · 2018-10-29T15:02:22.220

2

run

npm i npm@latest -g

to update node package manager. then run again

npm install -g @angular/cli@1.7

edited Oct 29 '18 at 15:02

answered May 18 '18 at 20:31

Matias Miraglio

I have problem with this either installing 1.7.4 or 6.2.5 it stays with angular 7.2.6. node:v8.11.3 npm:6.8.0. I am trying to downgrade angular7 to 6 but without success. – Shinya Koizumi Feb 24 '19 at 03:01

score 1 · Answer 4 · edited Aug 12 '19 at 11:42

1

First run these three commands to check which version is installed currently:

node -v
npm -v
ng --version

Then to uninstall the cli:

npm uninstall -g @angular/cli

To clean cache:

npm cache clean --force

Then install the version that you want (X.X.X):

npm install -g @angular/cli@6.2.5

To check the successfull update:

ng --version

edited Aug 12 '19 at 11:42

Prashant Pimpale

answered Aug 12 '19 at 11:33

venkatesh p

4 Answers4