Type androidx.appcompat.resources.R$dimen is defined multiple times

Question

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!

I'm having the same error after upgrading to 3.6.1! If you find anything please let me know. I'm stuck :( — carlos21, Mar 05 '20 at 03:45
Solved by downgrading Android Gradle Plugin to 3.5.0 and Gradle Version to 5.5! — Igor Montella, Mar 07 '20 at 04:11
Same issue, but downgrading to 3.5.0 brings other issues. This appeared literally out of nowhere. After downgrading, upgrading again worked for me. Perhaps something to do with caches... — slhck, Apr 06 '20 at 16:38

score 37 · Answer 1 · answered Mar 14 '20 at 21:57

37

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

answered Mar 14 '20 at 21:57

Franklin Paula

481
3
2

8

For those who do not how to clean the project, simply type: `cd android && ./gradlew clean` – olegario Aug 03 '21 at 15:56
Thanks, I made it and work well ... – yasriady Oct 12 '21 at 23:59

score 10 · Answer 2 · answered May 13 '21 at 13:55

10

I deleted android/app/build folder, because my duplicates were exactly there.

answered May 13 '21 at 13:55

Wito Divaro

129
1
6

score 8 · Answer 3 · answered Jun 04 '20 at 20:36

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.

score 7 · Accepted Answer · answered Mar 21 '20 at 04:17

7

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

answered Mar 21 '20 at 04:17

Andrew Aarestad

1,120
2
11
15

2

Downgrading vital tools for the IDE should never be a permanent solution. This only covers up the real problem. – Nikos Hidalgo Jul 10 '20 at 15:02
2

Of course I would prefer to not downgrade. However when using a framework like React Native that is so heavily dependent on third party libraries, I often have little choice if I want to continue development. – Andrew Aarestad Jul 10 '20 at 20:18

score 3 · Answer 5 · answered May 25 '20 at 14:09

3

I just run following built in routine in Android Studio:

File > Sync Project with Gradle Files

And then it worked again :-)

answered May 25 '20 at 14:09

AZOM

265
5
15

score 3 · Answer 6 · answered Aug 19 '20 at 22:20

While I was coding on the android studio on native android.Got the same problem

Type androidx.appcompat.resources.R$dimen is defined multiple times:

The problem is because of the Duplication of the BuildConfig which is present inside the JAVA (Generated) Directory

Here is the solution to fix the problem.

You have to delete the duplicate BuildConfig from the android studio by this process

Click on java(generated) on the Left side

The problem is extra Build Config Created

When you click any of the BuildConfig, it will show the same error display in the picture

Delete the extra BuildConfig and keep the original BuildConfig.

Problem Solved

score 2 · Answer 7 · answered Apr 09 '20 at 13:33

2

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.

answered Apr 09 '20 at 13:33

slhck

36,575
28
148
201

I did not get my Android project running again by downgrading to 3.5.0 and than back to 3.6.2. But I got it running by just downgrading to 3.6.1 – Rik van Velzen Apr 15 '20 at 07:44

score 2 · Answer 8 · answered Jun 22 '21 at 10:04

For Googlers:
In my case, I've created a benchmark module (with plugin "com.android.library") and made it depend on the app module (with plugin "com.android.application").
But library module can not depend on the application module, as Gradle does not support it.
Here some info: https://www.reddit.com/r/androiddev/comments/boi4xg/modularization_help_android_library_module/

score 1 · Answer 9 · answered Jun 14 '22 at 12:16

1

Steps to follow

Sync gradle files
go to build section --> clean Project
go to build section --> rebuild Project
Again Sync the gradle files

Note: Make sure your PC/ Laptop connect with internet and updated android studio

answered Jun 14 '22 at 12:16

Suraj Patil

23
4

score 0 · Answer 10 · answered Jul 16 '20 at 06:05

0

File->Invalidate Caches / Restart

answered Jul 16 '20 at 06:05

HalZhang

206
1
6

score 0 · Answer 11 · answered Mar 26 '21 at 07:18

I deleted ~/.gradle/caches

seems to work good. I did this because I saw ~/.gradle/caches in my error.

Type androidx.legacy.app.ActionBarDrawerToggle$Delegate is defined multiple times:
/Users/me/.gradle/caches/transforms-3/08344aeb2253f0dce062ee9436d14235/transformed/legacy-support-core-ui-1.0.0-runtime/classes.dex,
/Users/me/.gradle/caches/transforms-3/bde9e50d97f78024fdfcb4b5869842c8/transformed/legacy-support-core-ui-1.0.0-runtime/classes.dex

score 0 · Answer 12 · answered Jun 09 '21 at 05:01

These answers are all outdated. I used 4.1.2. If you look at the path given in AS, it should point to \app\build\intermediates\project_dex_archive\debug\out. Go to this path, delete all the *.jar files, leaving the most recent one. I tried this and my project worked perfectly.

Don't bother with invalidates caches / restart as it won't work.

score 0 · Answer 13 · answered Jun 20 '21 at 05:06

0

I have also the same issue in my case simply You have upgrade dependency it also works for me

answered Jun 20 '21 at 05:06

Adarsh Dwivedi

1

score 0 · Answer 14 · edited Sep 27 '21 at 11:00

@Wito Divaro, his answer helped me. If you are bothered by "R is defined multiple times.", just try to get rid of 'android/app/build'. Furthermore, I added this below line to app/build.gradle. If you want to try, try this.

defaultConfig {
   ..............
   multiDexEnabled true
}

dependencies {
    ..............
    implementation 'androidx.multidex:multidex:2.0.1'
}

public class MyApplication extends MultiDexApplication {
    ..............
}

score 0 · Answer 15 · answered Jul 27 '23 at 12:45

0

For me, that fixed it.

step 1: I deleted the file BuildConfig in: app->java(generated)->BuildConfig

step 2: Clean Project: Build->Clean Project

step 3: Build->Rebuild Project

answered Jul 27 '23 at 12:45

Adriano Henrique Cardoso

1

score -1 · Answer 16 · answered Aug 27 '21 at 05:27

-1

I faced the same problem and solved it simply follow the above path and delete all files

answered Aug 27 '21 at 05:27

Hussein khalaf

1
1

1

Please add further details to expand on your answer, such as working code or documentation citations. – Community Aug 27 '21 at 06:08
@husseinkhalaf your answer is incomplete, you forgot to add the **path**, which is supposed to be deleted! – Manifest Man Aug 28 '21 at 21:37
This does not provide an answer to the question. Once you have sufficient [reputation](https://stackoverflow.com/help/whats-reputation) you will be able to [comment on any post](https://stackoverflow.com/help/privileges/comment); instead, [provide answers that don't require clarification from the asker](https://meta.stackexchange.com/questions/214173/why-do-i-need-50-reputation-to-comment-what-can-i-do-instead). – Manifest Man Aug 28 '21 at 21:42
You have to delete all files in a folder release and then clean project – Hussein khalaf Nov 18 '21 at 03:01

Type androidx.appcompat.resources.R$dimen is defined multiple times

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