Challenge upgrading from Angular 2 to Angular 5

I am attempting to update my Angular 2 Application to Angular 5 following the guidelines provided in this tutorial:

Even though my project builds successfully, I continuously encounter the following error in the browser: common.js:999 Uncaught Error: Missing locale data for the locale "DE".

I have attempted the solution recommended in the link below without any positive results:

Angular 5 Breaking change - manually import locale

The dependencies listed in my package.json are as follows:

"dependencies": {
    "@angular/common": "^5.0.0",
    "@angular/compiler": "^5.0.0",
    // Remaining dependencies omitted for brevity
},
"devDependencies": {
    "@angular/cli": "^1.6.8",
    "@angular/compiler-cli": "^5.0.0",
    // Remaining devDependencies omitted for brevity
}

Finally, here is a snippet of my app.module.ts file:

import {LOCALE_ID} from '@angular/core';
import { registerLocaleData } from '@angular/common';
import localeDE from '@angular/common/locales/de';
registerLocaleData(localeDE);
....

providers: [
    Configuration.getProviders(),
    { provide: LOCALE_ID, useValue: 'de' },
]

})

export default class AppModule {
}

Could you please guide me on how to resolve this issue?

Answer №1

If you need to use a different locale than the default en-US in Angular, you will have to import the corresponding locale data for that specific locale. When using ng serve or ng build with the --configuration parameter, the CLI takes care of importing the required locale data automatically.

However, if you want to import locale data for other languages manually, you can do so in your app.module.ts file by following this example:

import { registerLocaleData } from '@angular/common';
import localeDe from '@angular/common/locales/de';
import localeDeExtra from '@angular/common/locales/extra/de';

registerLocaleData(localeDe, 'de-DE', localeDeExtra);

For more information, you can visit this link.

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