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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, 2025022 Mins Read
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    xcode – React Native Expo not working on iOS build with Expo 54
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    [ad_1]

    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?

    [ad_2]

    Source link

    build EXPO iOS native React working Xcode
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