title: Can't run or debug react native
body: <p>I am using Visual Code, and just created an react native app through <code>create-react-app NewTest</code>
  I already installed React Native Tools in vscode
  The app is running just fine in my android device through Expo installed on it. The problem is that I can't run it on my simulator which is genymotion mobile
  I get this error:
  [Error] Error: Unknown error: not all success patterns were matched</p>
  
  <p>My <code>launch.json</code>:</p>
  
  <pre><code>{
      // 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": [
          {
              "name": ".NET Core Attach",
              "type": "coreclr",
              "request": "attach",
              "processId": "${command:pickProcess}"
          },
          {
              "name": "Debug Android",
              "program": "${workspaceRoot}/.vscode/launchReactNative.js",
              "type": "reactnative",
              "request": "launch",
              "platform": "android",
              "sourceMaps": true,
              "outDir": "${workspaceRoot}/.vscode/.react"
          },
          {
              "name": "Debug iOS",
              "program": "${workspaceRoot}/.vscode/launchReactNative.js",
              "type": "reactnative",
              "request": "launch",
              "platform": "ios",
              "sourceMaps": true,
              "outDir": "${workspaceRoot}/.vscode/.react"
          },
          {
              "name": "Attach to packager",
              "program": "${workspaceRoot}/.vscode/launchReactNative.js",
              "type": "reactnative",
              "request": "attach",
              "sourceMaps": true,
              "outDir": "${workspaceRoot}/.vscode/.react"
          },
          {
              "name": "Debug in Exponent",
              "program": "${workspaceRoot}/.vscode/launchReactNative.js",
              "type": "reactnative",
              "request": "launch",
              "platform": "exponent",
              "sourceMaps": true,
              "outDir": "${workspaceRoot}/.vscode/.react"
          }
      ]
  }
  </code></pre>
  
  <p>I just started the <a href="https://github.com/Microsoft/vscode-react-native" rel="nofollow noreferrer">getting started</a> tutorial and I have no idea about why it is not working. I already search over the internet and could not find much help.</p>
  
  <p><a href="https://i.stack.imgur.com/aovCA.jpg" rel="nofollow noreferrer">Genymotion device</a></p>
  
  <p><a href="https://i.stack.imgur.com/qCgD7.jpg" rel="nofollow noreferrer">Error image</a></p>