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    Home»iOS Development»xcode – React Native Expo not working on iOS build with Expo 54
    iOS Development

    xcode – React Native Expo not working on iOS build with Expo 54

    big tee tech hubBy big tee tech hubOctober 27, 2025012 Mins Read
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    xcode – React Native Expo not working on iOS build with Expo 54
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    I’m trying to put together a project for iOS at Expo.
    I run the following commands:

    1. rm -rf node_modules android ios

    2. npm i

    there is my package.json:

    {
      "name": "firstapp",
      "main": "expo-router/entry",
      "version": "1.0.0",
      "scripts": {
        "start": "expo start",
        "reset-project": "node ./scripts/reset-project.js",
        "android": "expo run:android",
        "ios": "expo run:ios",
        "web": "expo start --web",
        "lint": "expo lint"
      },
      "dependencies": {
        "@expo/vector-icons": "^15.0.3",
        "@react-native-community/javascriptcore": "^0.2.0",
        "@react-navigation/bottom-tabs": "^7.4.0",
        "@react-navigation/elements": "^2.6.3",
        "@react-navigation/native": "^7.1.8",
        "expo": "~54.0.20",
        "expo-constants": "~18.0.10",
        "expo-font": "~14.0.9",
        "expo-haptics": "~15.0.7",
        "expo-image": "~3.0.10",
        "expo-linking": "~8.0.8",
        "expo-router": "~6.0.13",
        "expo-splash-screen": "~31.0.10",
        "expo-status-bar": "~3.0.8",
        "expo-symbols": "~1.0.7",
        "expo-system-ui": "~6.0.8",
        "expo-web-browser": "~15.0.8",
        "lucide": "^0.548.0",
        "lucide-react-native": "^0.548.0",
        "react": "19.1.0",
        "react-dom": "19.1.0",
        "react-native": "0.81.5",
        "react-native-gesture-handler": "~2.28.0",
        "react-native-reanimated": "~4.1.1",
        "react-native-safe-area-context": "~5.6.0",
        "react-native-screens": "~4.16.0",
        "react-native-svg": "15.12.1",
        "react-native-web": "~0.21.0",
        "react-native-worklets": "0.5.1"
      },
      "devDependencies": {
        "@types/react": "~19.1.0",
        "eslint": "^9.25.0",
        "eslint-config-expo": "~10.0.0",
        "typescript": "~5.9.2"
      },
      "private": true
    }
    
    1. npx expo prebuild –clean
    2. npx expo run:ios
      An error related to the Hermes engine occurred during the build.
    The following build commands failed:
            PhaseScriptExecution [CP-User]\ [RN]\ [2]\ Build\ Hermes /Users/alex/Library/Developer/Xcode/DerivedData/todo-cycgfezcyhczudhejdarwzurubpi/Build/Intermediates.noindex/Pods.build/Debug-iphonesimulator/hermes-engine.build/Script-46EB2E0002B6B0.sh (in target 'hermes-engine' from project 'Pods')
            Building workspace todo with scheme todo and configuration Debug
    (2 failures)
    Build logs written to /Users/alex/ios/firstapp/.expo/xcodebuild.log
    
    
    CMake Warning:
      Manually-specified variables were not used by the project:
    
        IMPORT_HERMESC
    
    
    -- Build files have been written to: /Users/alex/ios/firstapp/ios/Pods/hermes-engine/build/iphonesimulator
    ++ echo 'Build Apple framework'
    Build Apple framework
    +++ sysctl -n hw.ncpu
    ++ /opt/homebrew/bin/cmake --build /Users/alex/ios/firstapp/ios/Pods/hermes-engine/build/iphonesimulator --target libhermes -j 8
    make: *** No rule to make target `libhermes'.  Stop.
    Command PhaseScriptExecution failed with a nonzero exit code
    

    I also tried reinstalling dependencies, clearing the node.js cache and the project build folder in Xcode, and disabling hermes_engine in PodFile. Building with npx expo start works. I should also note that building with the expo version 52 dependency also works with the hermes engine disabled.
    How can this be fixed?



    Source link

    build EXPO iOS native React working Xcode
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    tonirufai
    big tee tech hub
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