First, run your app with the following command:
npm start
On your device (whether real or emulated), access the developer menu by shaking (on an actual device) or using command + m for macOS or Ctrl + M for Windows or Linux. At the very least, you want to enable remote JS debugging:
Using the device's developer menu to enable remote JS debugging
Now, open the react-native-debugger app by clicking on the executable you downloaded. If nothing happens, even after reloading the app, then the problem is surely due to a different port being set: in the menu, select Debugger, then New Window, and pick port 19001, and everything should ...
