For me I uninstalled watchman and then reinstalled it using brew as shown below: npm r -g watchman brew install watchman
I did a PR to the React Native project to allow this feature. The PR can be check here: https://github.com/facebook/react-native/commit/ca7cbdee858e84c4a74a2d9c7be151f5cfdcfbfe So, in the future, to run a release build from terminal you just only need to type the following command: npx react-native run-ios –configuration Release If you want run your project on a real device …
Ran into the same issue with Node.js 17.0.0. To solve it, I downgraded to version 14.18.1, deleted node_modules and reinstalled.
I just got a similar error for the first time today. It appears in \node_modules\metro-config\src\defaults\blacklist.js, there is an invalid regular expression that needed changed. I changed the first expression under sharedBlacklist from: var sharedBlacklist = [ /node_modules[/\\]react[/\\]dist[/\\].*/, /website\/node_modules\/.*/, /heapCapture\/bundle\.js/, /.*\/__tests__\/.*/ ]; to: var sharedBlacklist = [ /node_modules[\/\\]react[\/\\]dist[\/\\].*/, /website\/node_modules\/.*/, /heapCapture\/bundle\.js/, /.*\/__tests__\/.*/ ];
You haven’t started the bundler yet. Run npm start or react-native start in the root directory of your project before react-native run-android.