Angular's error notification system seems to be lacking in providing accurate

I'm experiencing an issue with my angular app where errors are not displayed properly. Instead of showing errors in the component and line number, they always appear in main.js. This is different from how errors are displayed in my other angular applications. Here is a screenshot for reference: https://i.stack.imgur.com/e3PO4.png

I suspect that the problem may be due to a missing development configuration in my angular.json file.

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "cli": {
    "analytics": "fadcd178-4e22-400b-975d-788758cb58bf"
  },
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "route-app": {
      "projectType": "application",
      ...

Additionally, here is my packages.json content:

{
  "name": "route-app",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    
  }
}

If anyone can provide assistance with resolving this issue, it would be greatly appreciated. Thank you!

angulartypescriptionic-framework

Answer №1

To set up your development environment, make sure to include the following configuration.

        "build": {
             :
          "configurations": {
            "production": {
               :
            },
            "development": {
              "buildOptimizer": false,
              "optimization": false,
              "vendorChunk": true,
              "extractLicenses": false,
              "sourceMap": true,
              "namedChunks": true
            }
          }
        }
        "serve": {
            :
          "configurations": {
            "production": {
              "browserTarget": "route-app:build:production"
            },
            "development": {
              "browserTarget": "route-app:build:development"
            }
          }

Once configured, you can start your application using ng serve -c development.

Answer №2

To ensure that errors in the "dev" environment are correctly mapped, it is important to configure the source map in the angular.json file for that specific environment:

configuration:{
     ...,        
    "dev":{ 
        ...,    
        "sourceMap": true,
        ...
    },
    ...,
}

Setting the parameter "sourceMap" to true is essential as it allows error tracking to be linked back to the source file where it originated. Refer to the official documentation for more information on this configuration:

https://angular.io/guide/workspace-config#source-map-configuration

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