3 ms·

Make sure your phone can connect to your machine: check https://facebook.github.io/react-native/docs/running-on-device-android.html#content https://facebook.git

• eloisant 11y ago
  Indeed, I had to input the local IP of my machine with "Debug server host for device". Thank you! Then I got a NPE: [21:36:12] <START> request:/index.android.bundle?platform=android TypeError: Cannot read property 'root' of null at /Volumes/Devdisk/Perso/ErwanReact/node_modules/react-native/packager/react-packager/src/DependencyResolver/crawlers/index.js:16:84 at tryCallOne (/Volumes/Devdisk/Perso/ErwanReact/node_modules/react-native/node_modules/promise/lib/core.js:37:12) at /Volumes/Devdisk/Perso/ErwanReact/node_modules/react-native/node_modules/promise/lib/core.js:103:15 at flush (/Volumes/Devdisk/Perso/ErwanReact/node_modules/react-native/node_modules/promise/node_modules/asap/raw.js:50:29) at doNTCallback0 (node.js:408:9) at process._tickCallback (node.js:337:13) I was able to fix it by replacing this line: https://github.com/facebook/react-native/blob/master/packager/react-packager/src/DependencyResolver/crawlers/index.js#L16 https://github.com/facebook/react-native/blob/master/package... By this: return fileWatcher.getWatchers().then(([watcher]) => !!(watcher.watchProjectInfo && watcher.watchProjectInfo.root));