How can I debug an Angular multi-project workspace in Visual Studio Code

Question

How can I debug an Angular multi-project workspace in VSCode using the VS Code - Debugger for Chrome? After the migration to an Angular multi-project workspace, the debugging does not work anymore. I get the following message if I set a breakpoint.

Breakpoint set but not yet bound

I found a blog post about this topic: "Visual Studio Code Breakpoints for Angular Multi-Project Workspace". I added the following to my launch.json, I replaced "webRoot": "${workspaceRoot}"" with "webRoot": "${workspaceFolder}":

{
    "name": "Launch new-app in Chrome against localhost (with sourcemaps)",
    "type": "chrome",
    "request": "launch",
    "runtimeExecutable": "/usr/bin/chromium-browser",
    "runtimeArgs": [
        "--disable-extensions"
    ],
    "url": "http://localhost:4200",
    "webRoot": "${workspaceFolder}",
    "sourceMaps": true,
    "sourceMapPathOverrides": {
        "/./*": "${webRoot}/projects/new-app/*",
        "/src/*": "${webRoot}/projects/new-app/src/*",
        "/*": "*",
        "/./~/*": "${webRoot}/node_modules/*",
    },
}

I also replaced new-app with the correct app name, but it does still not work.

The folder structure:

Can anyone help me to get this working?

Answer 1

I get this working by using the .scripts command to find out the correct paths for the sourceMapPathOverrides property.

    {
      "name": "Launch editor in Chrome against localhost (with sourcemaps)",
      "type": "chrome",
      "request": "launch",
      "runtimeExecutable": "/usr/bin/chromium-browser",
      "runtimeArgs": [
        "--disable-extensions"
      ],
      "url": "http://localhost:4200",
      "webRoot": "${workspaceFolder}",
      "sourceMaps": true,
      "sourceMapPathOverrides": {
          "webpack:/*": "${webRoot}/projects/apps/editor/*",
          "webpack:///./src/*": "${webRoot}/projects/apps/editor/src/*",
          "/*": "*",
          "/./~/*": "${webRoot}/node_modules/*",
      },
  }

Answer 2

i'm using angular 10 workspace with app & library, and i was having trouble setting breakpoints in my library.

i needed to tell "ng serve" to include vendor sourcemaps...

add a "sourceMap" object to your "angular.json" under projects / "my-app" / architect / "serve" / options:

        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "app:build",
            "sourceMap": {
              "scripts": true,
              "styles": true,
              "vendor": true
            }
          },

ng build my-library
ng serve my-app

launch.json:

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "type": "chrome",
            "request": "launch",
            "name": "my-app",
            "url": "http://localhost:4200", 
            "webRoot": "${workspaceFolder}/projects/my-app",
            "sourceMaps": true,
        }
    ]
}