[solved] Duplicate resources android build error with v9.1.0 - [fonts were in source tree *and* using module's build.gradle font copy]

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Environment

react-native 0.67.2, gradle 7.4, android gradle plugin 7.1.1, react-native-vector-icons 9.1.0 (hot off the presses!)

Description

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:mergeDevDebugAssets'.
> [fonts/Fontisto.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/Fontisto.ttf    [fonts/Fontisto.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/Fontisto.ttf: Error: Duplicate resources
  [fonts/Octicons.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/Octicons.ttf    [fonts/Octicons.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/Octicons.ttf: Error: Duplicate resources
  [fonts/Feather.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/Feather.ttf      [fonts/Feather.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/Feather.ttf: Error: Duplicate resources
  [fonts/Entypo.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/Entypo.ttf        [fonts/Entypo.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/Entypo.ttf: Error: Duplicate resources
  [fonts/FontAwesome5_Brands.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/FontAwesome5_Brands.ttf      [fonts/FontAwesome5_Brands.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/FontAwesome5_Brands.ttf: Error: Duplicate resources
  [fonts/MaterialCommunityIcons.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/MaterialCommunityIcons.ttf        [fonts/MaterialCommunityIcons.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/MaterialCommunityIcons.ttf: Error: Duplicate resources
  [fonts/AntDesign.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/AntDesign.ttf  [fonts/AntDesign.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/AntDesign.ttf: Error: Duplicate resources
  [fonts/Foundation.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/Foundation.ttf        [fonts/Foundation.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/Foundation.ttf: Error: Duplicate resources
  [fonts/Ionicons.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/Ionicons.ttf    [fonts/Ionicons.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/Ionicons.ttf: Error: Duplicate resources
  [fonts/FontAwesome5_Solid.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/FontAwesome5_Solid.ttf        [fonts/FontAwesome5_Solid.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/FontAwesome5_Solid.ttf: Error: Duplicate resources
  [fonts/FontAwesome5_Regular.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/FontAwesome5_Regular.ttf    [fonts/FontAwesome5_Regular.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/FontAwesome5_Regular.ttf: Error: Duplicate resources
  [fonts/FontAwesome.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/FontAwesome.ttf      [fonts/FontAwesome.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/FontAwesome.ttf: Error: Duplicate resources
  [fonts/Zocial.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/Zocial.ttf        [fonts/Zocial.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/Zocial.ttf: Error: Duplicate resources
  [fonts/EvilIcons.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/EvilIcons.ttf  [fonts/EvilIcons.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/EvilIcons.ttf: Error: Duplicate resources
  [fonts/SimpleLineIcons.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/SimpleLineIcons.ttf      [fonts/SimpleLineIcons.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/SimpleLineIcons.ttf: Error: Duplicate resources
  [fonts/MaterialIcons.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/src/main/assets/fonts/MaterialIcons.ttf  [fonts/MaterialIcons.ttf] /Users/mike/work/EquityResidences/equityresidences/packages/public-app/android/app/build/intermediates/ReactNativeVectorIcons/fonts/MaterialIcons.ttf: Error: Duplicate resources

Reproducible Demo

I’m still investigating this but thought to log it quickly since rolling back to 9.0.0 does not cause a build faliure, while 9.1.0 does. I can confirm with 9.0.0 I actually do have vector icons showing up as well so by all appearances 9.0.0 is working

Likely cause #1401 but I haven’t looked into it thoroughly yet

I tried rm -fr android/build android/app/build and rebuilt, just to see if that had an effect. No effect. Only the revert to v9 is successful at the moment

I am not including specific fonts, the tail of my android/app/build.gradle is:

apply from: file("../../node_modules/@react-native-community/cli-platform-android/native_modules.gradle"); applyNativeModulesAppBuildGradle(project)
apply from: "../../node_modules/react-native-vector-icons/fonts.gradle"

[oblador]

Yeah, I’m pretty confident this is the case. You should pick one approach, either manually copying them to your fonts folder, or copying on build with gradle. To fix this error simply remove the duplicates in packages/public-app/android/app/src/main/assets/fonts, they are most likely out of date anyways.

[lyswhut]

Same problem in v9.1.0, removing them will work again:

• android/app/src/main/fonts/AntDesign.ttf
• android/app/src/main/fonts/MaterialCommunityIcons.ttf

---

Update

Check your android/app/src/main/fonts directory, if the following files exist, just delete them:

• AntDesign.ttf
• Entypo.ttf
• EvilIcons.ttf
• Feather.ttf
• FontAwesome.ttf
• FontAwesome5_Brands.ttf
• FontAwesome5_Regular.ttf
• FontAwesome5_Solid.ttf
• Fontisto.ttf
• Foundation.ttf
• Ionicons.ttf
• MaterialCommunityIcons.ttf
• MaterialIcons.ttf
• Octicons.ttf
• SimpleLineIcons.ttf
• Zocial.ttf