Commands if you are using Windows can be found here.Root = true # Unix-style newlines with a newline ending every file.Commands if you are using npm can be found here.Clear your bundler caches by running rm -rf node_modules & npm cache clean -force & npm install & watchman watch-del-all & rm -rf $TMPDIR/haste-map-* & rm -rf $TMPDIR/metro-cache & expo start -clear.If this is a bare workflow project, and this error is occurring right after upgrading your React Native version, you should double-check that you've performed each of the upgrade steps correctly. Expo CLI will make sure that your dependency versions for packages like expo and react-native are aligned. If you did upgrade to newer SDK, make sure to run expo-cli upgrade and follow the prompts. Run expo-cli doctor will show a warning where the react-native version you should install. If this is a managed workflow project, you should make sure your react-native version is correct. If this is a managed workflow project, either remove the sdkVersion field from your app.json file, or make sure it matches the value of the expo dependency in your package.json file. How to fix itĬlose out any development servers that you have running (you can list all terminal processes with the ps command, and search for Expo CLI or React Native community CLI processes with ps -A | grep "expo\|react-native"). This can happen after upgrading your React Native or Expo SDK version, or when connecting to the wrong local development server. The bundler that you're running in your terminal (via npx expo start) is using a different JavaScript version of react-native than the native app on your device or emulator. Make sure you have rebuilt the native code. When developing an Expo or React Native app, it's not uncommon to run into an error that looks like: React Native version mismatch.
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