Getting errors after updating Angular to version 8

Question

I have updated Angular using ng update @angular/cli but am now receiving errors. Below is the output of running ng --version:

Angular CLI: 8.1.0
Node: 10.16.0
OS: darwin x64
Angular: 
... 


Package                      Version
------------------------------------------------------
@angular-devkit/architect    <error>
@angular-devkit/core         <error>
@angular-devkit/schematics   <error>
@schematics/angular          <error>
@schematics/update           <error>

I have tried to uninstall node and angular, but am still encountering the issues.

How do I revert what I did so I do not have the errors anymore, and then what is the correct way to upgrade to Angular version 8? Thank you.

npm uninstall -g @angular/cli doesn't update angular. It uninstalls the Angular CLI. — JB Nizet
– JB Nizet, Commented Jul 7, 2019 at 11:46
I wanted to update Angular version to 8. Then I tried ng update @angular/cli command. — user5000
– user5000, Commented Jul 7, 2019 at 11:48
Don't try random things. Follow the instructions here: update.angular.io. And note that you must be inside an Angular project to update it to a given Angular version. — JB Nizet
– JB Nizet, Commented Jul 7, 2019 at 11:50

8888 · Accepted Answer · 2019-07-07 12:48:00Z

2

Since you already uninstalled some packages, you may want to get back to where you were before first. So start with a clean slate.

In your terminal go to the angular project you are trying to update
Remove your node_modues
- $ rm -rf node_modules
Reinstall your current packages based on package-lock.json to be at the correct state
- $ npm ci
Now you can again view what packages need updating
- $ ng update
Update Angular CLI and core together as per Angular's update guide
- $ ng update @angular/cli @angular/core

answered Jul 7, 2019 at 12:48

8888

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