Type androidx.appcompat.resources.R$dimen is defin

We have a React Native app where after upgrading to Android Studio 3.6.1 and Gradle plugin 3.6.1 we are seeing this compilation error:

Type androidx.appcompat.resources.R$dimen is defined multiple times: /Users/andrew/Software/project/android/app/build/intermediates/project_dex_archive/productionRelease/out/androidx/appcompat/resources/R$dimen.dex, /Users/andrew/Software/project/android/app/build/intermediates/project_dex_archive/productionRelease/out/15bdf8225afad69777cd7f9bd328ab094900c8289014e0107b56c5c62099dfea_3.jar:classes.dex

Here are our dependencies:

"dependencies": {
    "@dblackker/cameraroll": "^1.3.4",
    "@react-native-community/async-storage": "^1.7.1",
    "@react-native-community/geolocation": "^2.0.2",
    "@react-native-community/netinfo": "^4.4.0",
    "@react-native-community/push-notification-ios": "^1.0.6",
    "@react-native-firebase/analytics": "^6.2.0",
    "@react-native-firebase/app": "^6.2.0",
    "@react-native-firebase/crashlytics": "^6.2.0",
    "@react-native-firebase/perf": "^6.2.0",
    "appcenter": "^2.6.1",
    "appcenter-analytics": "^2.6.1",
    "appcenter-crashes": "^2.6.1",
    "axios": "^0.18.0",
    "clone": "^2.1.2",
    "immutability-helper": "^2.8.1",
    "lodash": "^4.17.14",
    "memoize-one": "^5.1.1",
    "moment": "^2.22.2",
    "prop-types": "^15.7.2",
    "react": "16.9.0",
    "react-custom-validation": "^0.5.7",
    "react-native": "0.61.5",
    "react-native-add-calendar-event": "^3.0.0",
    "react-native-app-intro-slider": "^3.0.0",
    "react-native-appearance": "^0.3.1",
    "react-native-camera": "^3.8.0",
    "react-native-contacts": "^5.0.6",
    "react-native-device-info": "^4.0.1",
    "react-native-gesture-handler": "^1.4.1",
    "react-native-heic-converter": "^1.3.0",
    "react-native-image-crop-picker": "^0.26.1",
    "react-native-image-resizer": "^1.0.1",
    "react-native-inappbrowser-reborn": "^3.1.0",
    "react-native-iphone-x-helper": "^1.2.1",
    "react-native-keyboard-aware-scroll-view": "^0.7.4",
    "react-native-linear-gradient": "^2.5.6",
    "react-native-maps": "0.26.1",
    "react-native-modal": "^7.0.2",
    "react-native-modal-datetime-picker": "^7.6.1",
    "react-native-parsed-text": "^0.0.21",
    "react-native-permissions": "^2.0.9",
    "react-native-push-notification": "^3.1.9",
    "react-native-reanimated": "^1.3.0",
    "react-native-section-list-get-item-layout": "^2.2.3",
    "react-native-shadow": "^1.2.2",
    "react-native-share": "^2.0.0",
    "react-native-svg": "^9.12.0",
    "react-native-svg-uri": "^1.2.3",
    "react-native-tab-view": "^2.3.0",
    "react-native-version-number": "^0.3.6",
    "react-navigation": "3.12.0",
    "react-navigation-tabs": "^2.1.2",
    "react-redux": "^5.0.7",
    "redux": "^4.0.4",
    "redux-thunk": "^2.3.0",
    "rn-fetch-blob": "^0.11.2",
    "validator": "^10.8.0"
  }

Can anyone help figure out what the issue is, and how could we debug this type of issue in the future? Thank you!

回答1:

Got the same problem, just clean project and rebuild again.

回答2:

Igor Montella's comment to my question fixed the problem - downgrade to gradle plugin 3.5.0.

回答3:

My errors were similar, with a "is defined multiple times" message.

I solved it by downgrading the Gradle plugin to 3.5.0, running the app — or at least trying to — then upgrading to Gradle plugin 3.6.2 again.

I am not sure why, but this seemed to have cleared some caches or dependencies I was not aware of.

Removing ~/.gradle or android/.gradle did not help.

回答4:

I had same issue after updating gradle version to 3.6.3 from 3.5.2 in Android Studio.

I have multiple Build Variants.

I fixed the issue by first deleting .gradle folder from the project and did Clean Project and Rebuild Project.

If you have multiple build variant you may have to do same thing for each one when you change build variants from one to another.

回答5:

I just run following built in routine in Android Studio:

File > Sync Project with Gradle Files

And then it worked again :-)