I\'m using React.JS and when I do react-native run-android (with my device plugged in) I see a blank page. When I shake the device and select Debug JS Rem
The other answers here were missing one crucial step for me. In AndroidManifest.xml I needed to add usesCleartextTraffic:
You probably don't want to keep this in the production release of your app though, unless you want to support insecure http requests.
After I added this to my AndroidManifest.xml, then I followed Tom Aranda's answer, and the emulator was finally able to connect to the debugger.