The configuration for this has a habit of changing between RN versions. See below for version-specific instructions on creating a config file, loading the config file and clearing the cache. For React Native >= 0.64(?) This is speculative as 0.64 is not yet released, but a rename from blacklist to exclusionList made in metro 0.60 … Read more
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.