Ionic-framework: bug: Problem with Angular 9 + Ionic 5

[nicobytes]

Bug Report

Ionic version:
[x] 5.x

Current behavior:
When run ionic serve the app doesn't work

Steps to reproduce:

I try upgrade with follow steps:

• ng update @angular/cli@8 @angular/core@8
• npm install @ionic/angular@latest @ionic/angular-toolkit@latest --save
• ng update @angular/cli @angular/core`

Ionic info:

   Ionic CLI                     : 6.1.0 (/usr/local/lib/node_modules/@ionic/cli)
   Ionic Framework               : @ionic/angular 5.0.0
   @angular-devkit/build-angular : 0.900.1
   @angular-devkit/schematics    : 9.0.1
   @angular/cli                  : 9.0.1
   @ionic/angular-toolkit        : 2.1.2

Ng version

@angular-devkit/architect         0.801.2
@angular-devkit/build-angular     0.900.1
@angular-devkit/build-optimizer   0.900.1
@angular-devkit/build-webpack     0.900.1
@angular-devkit/core              9.0.1
@angular-devkit/schematics        9.0.1
@angular/cli                      9.0.1
@ngtools/webpack                  9.0.1
@schematics/angular               8.3.25
@schematics/update                0.900.1
rxjs                              6.5.4
typescript                        3.7.5
webpack                           4.41.2

my tsconfig.app.json

{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "outDir": "./out-tsc/app",
    "types": []
  },
  "include": [
    "src/**/*.ts"
  ],
  "exclude": [
    "src/test.ts",
    "src/**/*.spec.ts"
  ]
}

[liamdebeasi]

Thanks for the issue. Can you provide a repo with the code required to reproduce this issue?

[NikolaPeevski]

@nicobytes I feel like the latest version of Ionic still handles up to Angular 8 (as tried to create any project lets me make only Angular 8 projects). If I try to make a blank app and update with the instructions you provided it compiles without any issues. Can you try rm -rf ./node_modules && npm i && ionic serve ?

[nourkrimesh]

I have the same issue.
Is there any official way to add new project and then upgrade into angular v9? or the templates will be updated to default have angular v9?

[liamdebeasi]

You can upgrade an app to Angular 9 by running ng update @angular/core @angular/cli.

The starter apps currently ship with Angular 8 and will be updated to ship with Angular 9 by default soon.

[ionitron-bot[bot]]

Thanks for the issue! This issue is being locked to prevent comments that are not relevant to the original issue. If this is still an issue with the latest version of Ionic, please create a new issue and ensure the template is fully filled out.