After Upgrading Angular from 8 to 10 I got ERROR in ts.updateIdentifier is not a function

Question

After Upgrading Angular from 8 to 10 I got

 ERROR in ts.updateIdentifier is not a function

this is my

ng --version

Angular CLI: 10.0.6
Node: 10.15.2
OS: win32 x64

Angular: 10.0.11
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router
Ivy Workspace: <error>

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.803.29
@angular-devkit/build-angular     0.803.29
@angular-devkit/build-optimizer   0.803.29
@angular-devkit/build-webpack     0.803.29
@angular-devkit/core              10.0.6
@angular-devkit/schematics        10.0.6
@angular/cdk                      10.1.3
@angular/cli                      10.0.6
@angular/fire                     5.4.2
@angular/http                     7.2.16
@ngtools/webpack                  8.3.29
@schematics/angular               10.0.6
@schematics/update                0.1000.6
rxjs                              6.6.2
typescript                        4.0.2
webpack                           4.39.2

I am using yarn , could anyone help me , I am using code-sharing native script

Virginiavirginie

Answer 1

I ran into the same error today. You should downgrade your typescript dependency to 3.9.7. That fixed it for me.

Snaky

for those like me who aren't really familiar with the commands, I used this command and it worked for me: npm install typescript@">=3.0.0 <3.9.7" – Makhachkala

Also fixed it for me. the error occured during the Compiling @angular/service-worker/config : es2015 as esm2015 step of the build – Colicweed

Encountered the same issue for angular 9.x. I had to downgrade to typescript 3.8.3 – Phrasal

Answer 2

Since downgrading a major language version was not really an option for me, and I by coincidence had a repository with an angular app that did not have the problem, I compared them to find this solution:

The error existed with @angular/… version 10.0.5. When I upgraded these packages to version 10.2.0, the problem was gone.

The full list for my basic app is below, but you might have more @angular/ prefixed packages:

    "@angular/animations": "^10.2.0",
    "@angular/common": "^10.2.0",
    "@angular/compiler": "^10.2.0",
    "@angular/core": "^10.2.0",
    "@angular/forms": "^10.2.0",
    "@angular/platform-browser": "^10.2.0",
    "@angular/platform-browser-dynamic": "^10.2.0",
    "@angular/router": "^10.2.0"

Andris