title: Property outFiles is not allowed in vs code's launch.json
body: <p>I am trying to debug typescript in vs code. As far as I researched, you need to set the outfiles property in th launch.config for vs code to map a breakpoint that you have set in a TypeScript file from the compiled .js file, as specified <a href="https://github.com/Microsoft/vscode/issues/69161" rel="noreferrer">here</a>.</p>
  
  <p>When I try to set mine, I get this error:</p>
  
  <p><a href="https://i.stack.imgur.com/5EFEM.png" rel="noreferrer"><img src="https://i.stack.imgur.com/5EFEM.png" alt="enter image description here"></a></p>
  
  <p>I found nothing about this error in google, and as this settings is needed for the typescript debugger to work, as indicated also in the <a href="https://vscode-eastus.azurewebsites.net/docs/typescript/typescript-debugging" rel="noreferrer">vs code documentation</a>.</p>
  
  <p>Thanks in advance for any help.</p>
  
  <p>Edit:</p>
  
  <p>launch.json:</p>
  
  <pre><code>"configurations": [
          {
              "type": "chrome",
              "request": "launch",
              "name": "Launch Chrome",
              "url": "http://localhost:3000",
              "webRoot": "${workspaceFolder}",
              "preLaunchTask": "tsc",
              "sourceMaps": true
          }
      ]
  </code></pre>
  
  <p>tsconfig:</p>
  
  <pre><code>{
    "compilerOptions": {
      /* Visit https://aka.ms/tsconfig.json to read more about this file */
  
      /* Basic Options */
      // "incremental": true,                   /* Enable incremental compilation */
      "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
      "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
      "strict": true,                           /* Enable all strict type-checking options. */
      "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
      "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
      "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
  
      /* Advanced Options */
      "skipLibCheck": true,                     /* Skip type checking of declaration files. */
      "forceConsistentCasingInFileNames": true, /* Disallow inconsistently-cased references to the same file. */
      "outDir": "src/ts-built",
      "rootDir": "src"
    }
  }
  </code></pre>