android : Error converting byte to dex

Question

So, I am getting the following error while running the project after upgrading build.gradle (Project) from

dependencies {
        classpath 'com.android.tools.build:gradle:2.0.0-alpha2'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
}

to

dependencies {
        classpath 'com.android.tools.build:gradle:2.0.0-alpha3'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
}

I just changed the gradle from 2.0.0-alpha2 to 2.0.0-alpha3 and then, trying to build the project.

Error log:

Information:Gradle tasks [:app:assembleDebug]
:app:incrementalDebugBuildInfoGenerator
:app:preBuild UP-TO-DATE
:app:preDebugBuild
:app:checkDebugManifest
:app:preReleaseBuild UP-TO-DATE
:app:prepareComAndroidSupportAppcompatV72311Library UP-TO-DATE
:app:prepareComAndroidSupportCardviewV72311Library UP-TO-DATE
:app:prepareComAndroidSupportCustomtabs2311Library UP-TO-DATE
:app:prepareComAndroidSupportDesign2311Library UP-TO-DATE
:app:prepareComAndroidSupportRecyclerviewV72311Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42311Library UP-TO-DATE
:app:prepareComDigitsSdkAndroidDigits192Library UP-TO-DATE
:app:prepareComTwitterSdkAndroidTweetComposer102Library UP-TO-DATE
:app:prepareComTwitterSdkAndroidTweetUi180Library UP-TO-DATE
:app:prepareComTwitterSdkAndroidTwitter1110Library UP-TO-DATE
:app:prepareComTwitterSdkAndroidTwitterCore162Library UP-TO-DATE
:app:prepareIoFabricSdkAndroidFabric1310Library UP-TO-DATE
:app:prepareDebugDependencies
:app:compileDebugAidl UP-TO-DATE
:app:compileDebugRenderscript UP-TO-DATE
:app:generateDebugBuildConfig UP-TO-DATE
:app:processDebugManifest UP-TO-DATE
:app:injectDebugBootstrap
Instrumented app with a fast deploy bootstrapping application
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugAssets UP-TO-DATE
:app:fabricGenerateResourcesDebug
:app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources
:app:mergeDebugResources
:app:processDebugResources
:app:generateDebugSources
:app:compileDebugJavaWithJavac UP-TO-DATE
:app:compileDebugNdk UP-TO-DATE
:app:compileDebugSources UP-TO-DATE
:app:fastDeployDebugExtractor
:app:generateDebugInstantRunAppInfo
:app:transformClassesWithExtractJarsForDebug
:app:transformClassesWithInstantRunVerifierForDebug
:app:transformClassesWithInstantRunForDebug
IncrementalSupportVisitor Visiting com/waysay/R$color
IncrementalSupportVisitor Visiting com/waysay/R$style
IncrementalSupportVisitor Visiting com/waysay/R$attr
IncrementalSupportVisitor Visiting com/waysay/R$dimen
IncrementalSupportVisitor Visiting com/waysay/R$integer
IncrementalSupportVisitor Visiting com/waysay/R$anim
IncrementalSupportVisitor Visiting com/waysay/BuildConfig
IncrementalSupportVisitor Visiting com/waysay/R$mipmap
IncrementalSupportVisitor Visiting com/waysay/R$menu
IncrementalSupportVisitor Visiting com/waysay/R
IncrementalSupportVisitor Visiting com/waysay/R$drawable
IncrementalSupportVisitor Visiting com/waysay/R$raw
IncrementalSupportVisitor Visiting com/waysay/R$layout
IncrementalSupportVisitor Visiting com/waysay/R$plurals
IncrementalSupportVisitor Visiting com/waysay/R$styleable
IncrementalSupportVisitor Visiting com/waysay/R$id
IncrementalSupportVisitor Visiting com/waysay/R$string
IncrementalSupportVisitor Visiting com/waysay/R$bool
IncrementalSupportVisitor Visiting com/waysay/models/WsModelPreference
IncrementalSupportVisitor Visiting com/waysay/models/WsModelMessage
IncrementalSupportVisitor Visiting com/waysay/models/ModelPreference$1
IncrementalSupportVisitor Visiting com/waysay/models/WsModelComment
IncrementalSupportVisitor Visiting com/waysay/models/ModelGetAnonymousJWT
IncrementalSupportVisitor Visiting com/waysay/models/ModelInboxFeed
IncrementalSupportVisitor Visiting com/waysay/models/ModelGetAnonymousJWT$1
IncrementalSupportVisitor Visiting com/waysay/models/ModelPreference
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterMessage$1
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterComment$CommentViewHolder
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterMessage$MessagesViewHolder$1
IncrementalSupportVisitor Visiting com/waysay/adapters/AdapterPreference$1
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterMessage$MessagesViewHolder
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterComment
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterMessage
IncrementalSupportVisitor Visiting com/waysay/adapters/AdapterPreference
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterMessage$MessagesViewHolder$2
IncrementalSupportVisitor Visiting com/waysay/fragments/DummyFragment$1
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile$2
IncrementalSupportVisitor Visiting com/waysay/fragments/FragmentPlaceholder$2
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile$4
IncrementalSupportVisitor Visiting com/waysay/fragments/FragmentPlaceholder
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentComment
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile$5
IncrementalSupportVisitor Visiting com/waysay/fragments/FragmentPlaceholder$1
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile$6
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile$1
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile$3
IncrementalSupportVisitor Visiting com/waysay/fragments/FragmentPlaceholder$VerticalSpaceItemDecoration
IncrementalSupportVisitor Visiting com/waysay/fragments/DummyFragment
IncrementalSupportVisitor Visiting com/waysay/fragments/FragmentPlaceholder$3
IncrementalSupportVisitor Visiting com/waysay/constants/WsConstant
IncrementalSupportVisitor Visiting com/waysay/constants/ToolBarCustom$1
IncrementalSupportVisitor Visiting com/waysay/constants/ToolBarCustom
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$5
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$2
IncrementalSupportVisitor Visiting com/waysay/app/SplashActivity
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$1
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$4
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$6
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$3
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$SectionsPagerAdapter
IncrementalSupportVisitor Visiting com/waysay/helpers/ServiceConnection
IncrementalSupportVisitor Visiting com/waysay/helpers/WebviewFallback
IncrementalSupportVisitor Visiting com/waysay/helpers/KeepAliveService
IncrementalSupportVisitor Visiting com/waysay/helpers/HelperVolley$1
IncrementalSupportVisitor Visiting com/waysay/helpers/CustomTabsHelper
IncrementalSupportVisitor Visiting com/waysay/helpers/HelperVolley
IncrementalSupportVisitor Visiting com/waysay/helpers/HelperPreferences
IncrementalSupportVisitor Visiting com/waysay/helpers/CustomTabActivityHelper
IncrementalSupportVisitor Visiting com/waysay/helpers/WebviewActivity
IncrementalSupportVisitor Visiting android/support/design/R$color
IncrementalSupportVisitor Visiting android/support/design/R$style
IncrementalSupportVisitor Visiting android/support/design/R$attr
IncrementalSupportVisitor Visiting android/support/design/R$dimen
IncrementalSupportVisitor Visiting android/support/design/R$integer
IncrementalSupportVisitor Visiting android/support/design/R$anim
IncrementalSupportVisitor Visiting android/support/design/R
IncrementalSupportVisitor Visiting android/support/design/R$drawable
IncrementalSupportVisitor Visiting android/support/design/R$layout
IncrementalSupportVisitor Visiting android/support/design/R$styleable
IncrementalSupportVisitor Visiting android/support/design/R$id
IncrementalSupportVisitor Visiting android/support/design/R$string
IncrementalSupportVisitor Visiting android/support/design/R$bool
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$color
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$style
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$attr
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$dimen
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$integer
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$anim
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$drawable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$raw
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$layout
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$plurals
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$styleable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$id
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$string
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$bool
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$color
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$style
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$attr
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$dimen
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$integer
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$anim
IncrementalSupportVisitor Visiting com/digits/sdk/android/R
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$drawable
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$raw
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$layout
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$styleable
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$id
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$string
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$bool
IncrementalSupportVisitor Visiting android/support/v7/cardview/R$color
IncrementalSupportVisitor Visiting android/support/v7/cardview/R$style
IncrementalSupportVisitor Visiting android/support/v7/cardview/R$attr
IncrementalSupportVisitor Visiting android/support/v7/cardview/R$dimen
IncrementalSupportVisitor Visiting android/support/v7/cardview/R
IncrementalSupportVisitor Visiting android/support/v7/cardview/R$styleable
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$color
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$style
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$attr
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$dimen
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$integer
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$anim
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$drawable
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$layout
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$styleable
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$id
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$string
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$bool
IncrementalSupportVisitor Visiting android/support/v7/recyclerview/R$attr
IncrementalSupportVisitor Visiting android/support/v7/recyclerview/R$dimen
IncrementalSupportVisitor Visiting android/support/v7/recyclerview/R
IncrementalSupportVisitor Visiting android/support/v7/recyclerview/R$styleable
IncrementalSupportVisitor Visiting android/support/v7/recyclerview/R$id
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$color
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$style
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$attr
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$dimen
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$drawable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$raw
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$layout
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$styleable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$id
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$string
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$color
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$style
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$attr
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$dimen
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$drawable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$raw
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$layout
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$styleable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$id
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$string
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$color
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$style
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$attr
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$dimen
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$drawable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$raw
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$layout
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$plurals
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$styleable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$id
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$string
:app:transformClassesWithInstant+restartDexForDebug
:app:transformClasses_enhancedWithInstant+reloadDexForDebug
:app:incrementalDebugSupportDex
:app:transformClassesWithDexForDebug
Error:Error converting bytecode to dex:
Cause: com.android.dex.DexException: Multiple dex files define Landroid/support/design/R$anim;
Error:Execution failed for task ':app:transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command '/usr/lib/jvm/java-7-oracle/bin/java'' finished with non-zero exit value 2
Information:BUILD FAILED
Information:Total time: 1 mins 22.84 secs
Information:2 errors
Information:0 warnings
Information:See complete output in console

Any help would be appreciated.

just go to this path [link](D:\App Development\my project\build\intermediates\pre-dexed\debug) and delete all files and then remove all files from lib folder which are not referenced in settings.gradle. DONE! just press build apk. — Rajdeep Paliwal, May 26 '17 at 06:28

Chintan Soni · Accepted Answer · 2016-11-07T04:21:58.243

135

Okay. I don't know how but this worked.

First I cleaned the project and then, running the project made everything go alright.

Inshort, First Clean and then Run.

Edit First Clean and then Make Project also works.

edited Nov 07 '16 at 04:21

answered Dec 18 '15 at 10:10

Chintan Soni

24,761
25
106
174

This question deserves one million reputations. It worked fo me. Just clean the project then click make the project. Just that. – Karue Benson Karue Mar 14 '17 at 14:33
If you understand this answer well, then it should work for you more. The issue is known to occur when you changed from one library to another of the same type but which was a fork of the old library. Some residual files made your new build corruptible upon building the apk. – Akah May 08 '18 at 21:04

IshRoid · Answer 2 · 2015-12-21T10:04:16.390

33

In My case, I First Clean the project then i press Make Project button as below image, then it start working. Rebuild doesn't work for me.

And I also updating Google Repository is must.

edited Dec 21 '15 at 10:04

answered Dec 19 '15 at 19:46

IshRoid

3,696
2
26
39

2

You are a champion ! – Markus Jan 11 '16 at 18:04

score 15 · Answer 3 · edited Sep 26 '16 at 09:43

15

In my case, I put

apply plugin: 'com.google.gms.google-services'

at the bottom of build.gradle file and set multiDexEnabled true in defaultConfig. Then just run and it works.

edited Sep 26 '16 at 09:43

Chintan Soni

24,761
25
106
174

answered Sep 26 '16 at 08:34

K.Sopheak

22,904
4
33
78

score 14 · Answer 4 · answered Jul 04 '16 at 20:15

14

If you are applying any plugins. Then, in your module Gradle file (usually the app/build.gradle),make sure you add the apply plugin line at the bottom of the file to enable the Gradle plugin.

e.g.

answered Jul 04 '16 at 20:15

Deepanshu Mishra

303
3
15

7

Google! it's not funny when placing matter. – nafsaka Nov 07 '16 at 07:46

score 10 · Answer 5 · answered Dec 28 '15 at 04:31

10

I met the same problem,and i clean project ,some other problems causeed can not clean,so i manually delete dir 'build' ,so it can can clean Ok,then run it ok for me.

answered Dec 28 '15 at 04:31

act262

463
4
7

score 8 · Answer 6 · answered Jul 03 '16 at 06:11

8

I found in my case, this issue was caused by an improper configuration of build.gradle. I had two different versions of com.google.firebase. Once the versions were the same, the issue was solved

answered Jul 03 '16 at 06:11

Aaron Dougherty

727
6
9

m also using Firebase and when I am building APK it is throwing this error, can you elaborate how to fix it. `Error:Error converting bytecode to dex: Cause: com.android.dex.DexException: Multiple dex files define Lcom/google/android/gms/common/internal/zzab;` – Deepanshu Mishra Jul 03 '16 at 09:14
4

In my case, I noticed two lines in my build.gradle `compile 'com.google.andrdoid.gms:play-services-ads:9.2.0` and `compile 'com.google.firebase:firebase-core:9.0.0` The issue was that two different versions of com.google was being loaded (9.0.0, and 9.2.0) even though one was for firebase, and one was for play services. Once they were both updated to 9.2.0, the issue was resolved. – Aaron Dougherty Jul 12 '16 at 20:41
@AaronDougherty - You are absolutely correct. I was having the same issue due to difference in firebase-ads and firebase-messaging version. I made it with same version firebase-ads:9.4.0 and firebase-messaging:9.4.0 and it is working fine now – Jigar Sep 21 '16 at 06:29
This can also happen if your Firebase-UI doesn't match your firebase version. Check the table here: https://github.com/firebase/FirebaseUI-Android – Juhani Dec 15 '16 at 14:13

Mahdi-Malv · Answer 7 · 2017-08-20T17:30:02.613

6

I met the same problem.
First delete build folder from project location (You can access it via android studio or using explorer), then build the project.

edited Aug 20 '17 at 17:30

answered Aug 28 '16 at 11:43

Mahdi-Malv

16,677
10
70
117

score 5 · Answer 8 · answered Aug 20 '16 at 12:55

5

In my case the problem was because of capital letters in some packages.

answered Aug 20 '16 at 12:55

Alexey

440
3
12

score 4 · Answer 9 · answered Dec 22 '15 at 09:35

4

Just restart your AS, then Rebuild your app!

answered Dec 22 '15 at 09:35

Fang

3,652
4
16
30

score 3 · Answer 10 · answered Jun 27 '16 at 01:03

After I upgraded to Android Studio 2.1, the next time I rebooted, I was asked to upgrade to JDK 1.8. After I upgraded to JDK 1.8, that's when my AS project had trouble compiling. I followed all of the suggestions in this page, but to no avail. Finally, I decided to check the version of JDK that my project was using, and to my surprise, it somehow was pointing to JDK 1.8!

Moral of the story: If compileSdkVersion<=23, double check that your project is using JDK1.7 as follows:

Right Mouse on top level module
Project STructure => JDK Location

Android Studio 2.3.3 comes with an embedded JDK 1.8.0 When you try to change it to an older (1.6 or 1.7) JDK, Android Studio refuses this with comment that a JDK version 1.8 or newer must be used. — Christoph Bimminger, Jun 26 '19 at 13:56

score 2 · Answer 11 · answered Jan 27 '16 at 19:19

2

In my case, this was due to my library not being configured as 'android'. E.g. apply plugin:'java' instead of apply plugin:'com.android.library'

answered Jan 27 '16 at 19:19

mbonnin

6,893
3
39
55

score 2 · Answer 12 · answered Jan 09 '17 at 18:45

Check you build.gradle (Module: your app).

All com.google.android.gms libraries must use the exact same version specification (mixing versions can lead to runtime crashes).

For example: If you have com.google.firebase:firebase-ads:9.6.1 and com.google.android.gms:play-services-basement:10.0.1

You have to change the firebase version to: 10.0.1

score 2 · Answer 13 · answered Feb 19 '17 at 07:57

2

Please add this block inside android in build.gradle

dexOptions { preDexLibraries = false }

answered Feb 19 '17 at 07:57

Ismaran Duwadi

1,529
12
10

score 2 · Answer 14 · answered Feb 23 '17 at 06:52

Before:

compile 'com.google.android.gms:play-services-location:10.0.1'
compile 'com.google.android.gms:play-services-auth:10.0.1'
compile 'com.google.firebase:firebase-database:10.2.0'
compile 'com.google.firebase:firebase-core:10.2.0'
compile 'com.google.firebase:firebase-messaging:10.2.0'

After:

compile 'com.google.android.gms:play-services-location:10.2.0'
compile 'com.google.android.gms:play-services-auth:10.2.0'
compile 'com.google.firebase:firebase-database:10.2.0'
compile 'com.google.firebase:firebase-core:10.2.0'
compile 'com.google.firebase:firebase-messaging:10.2.0'

Finally got resolved.

score 2 · Answer 15 · answered Apr 19 '17 at 16:23

2

My project used an external library with heterogeneous Java compatibility versions in my build.gradle files (1.7 and 1.8). I fixed it by using the same version for the lib and for the app project. In my case for both :

compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
    }

answered Apr 19 '17 at 16:23

Mika T

21
4

Very similar in my case. I was using 3rd party JARs, one compiled with 1.4 and the other with 1.5 source and target compatibility. I had to recompile them (luckily both were open source) myself with changed parameters for both to 1.7 because my DEX did not allow 1.8 or newer JARS - but without giving a clear reason, it had issues with the heterogenous java compatibilities of those 3rd party JARs. – Christoph Bimminger Jun 26 '19 at 14:10

score 2 · Answer 16 · answered Oct 19 '17 at 09:21

2

If you bring in to the code same library from 2 different sources that will cause the error.

answered Oct 19 '17 at 09:21

Ronen Rabinovici

8,680
5
34
46

2

You are right, but you should give further information instead of a simple statement – r4phG Nov 14 '17 at 09:53

score 2 · Answer 17 · answered Nov 06 '17 at 23:52

This problem is mainly in gradle or in misversioned libraries, including, from libraries, when both define the same class. Expand and check, imported external libraries...

You cannot have two same classes to be exported to one place, or code, therefore, dexer does not know which one should be used...

score 1 · Answer 18 · answered Dec 21 '15 at 07:47

1

For some reasons, @ChintanSoni's answer didn't worked. I tried deleting the build folder manually but couldn't delete some files since they were being used by some process. Cleaning and re-building the project didn't help so I opened task manager, selected JAVA(TM) Platform SE binary and pressed on 'End task`.

Then I tried to run the project once again and it started compiling fine.

answered Dec 21 '15 at 07:47

Rohan Kandwal

9,112
8
74
107

It is Android Studio who locks the files. Just close Android Studio, delete the build directory, Rebuild project – vovahost Jul 29 '17 at 08:16
I tried that but that doesn't close JAVA process. Only closing that process manually worked. – Rohan Kandwal Jul 29 '17 at 08:25

score 1 · Answer 19 · edited Oct 26 '16 at 20:00

1

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile fileTree(include: 'Parse-*.jar', dir: 'libs')
    compile 'com.android.support:appcompat-v7:23.2.0'
    compile 'com.android.support:cardview-v7:23.2.0'
    compile 'com.android.support:design:24.0.0-alpha1'
    compile "com.google.firebase:firebase-invites:9.2.0"
    compile "com.google.firebase:firebase-ads:9.2.0"
    compile 'com.google.firebase:firebase-database:9.2.0'
    compile 'com.google.firebase:firebase-core:9.2.0'
}

I add the com.google.firebase:firebase-core:9.2.0 line and choose the same version (9.2.0) for all firebase libraries and the issue was solved.

edited Oct 26 '16 at 20:00

Allan Pereira

2,572
4
21
28

answered Aug 30 '16 at 10:55

Terranology

610
9
15

I also had a Analytics library, and I had to change the version of that library, setting the same version that Firebase libraries. compile 'com.google.android.gms:play-services-analytics:9.2.0' – Terranology Sep 05 '16 at 14:54

score 1 · Answer 20 · answered Feb 07 '17 at 07:14

If you have multiple projects, make sure you are not adding a dependency multiple times, I needed to exclude the other project's dependency like this:

compile(project(':OtherProject-SDK')) {
    compile.exclude module: 'play-services-gcm'
    compile.exclude module: 'play-services-location'
    compile.exclude module: 'support-v4'
    compile.exclude module: 'okhttp'
}

score 1 · Answer 21 · answered Feb 21 '17 at 06:00

1

Just clean and retry solved for me.

answered Feb 21 '17 at 06:00

user3068659

443
5
14

score 1 · Answer 22 · answered Jul 23 '17 at 03:09

1

Try installing via :app:installDebug. If it works then it is related to Android Studio's caches. I removed .gradle/ folder inside my project and it works.

answered Jul 23 '17 at 03:09

Tanapruk Tangphianphan

793
10
10

score 1 · Answer 23 · answered Aug 26 '17 at 14:31

1

For me was very easy. Just add:

//noinspection GradleDependency,GradleCompatible implementation 'com.google.android.gms:play-services-auth:11.0.4'

... and the magic happens.

answered Aug 26 '17 at 14:31

Renan

11
1

score 1 · Answer 24 · answered Sep 27 '17 at 11:30

I had the same problem and it is caused by not same version of google analytics and firebase. I used 'com.google.gms:google-services:3.1.0' and then add these dependencies:

compile 'com.google.android.gms:play-services-gcm:10.2.6'
compile 'com.google.firebase:firebase-crash:10.0.1'

So change firebase version to 10.2.6 fix this problem.

compile 'com.google.android.gms:play-services-gcm:10.2.6'
compile 'com.google.firebase:firebase-crash:10.2.6'

score 1 · Answer 25 · edited Nov 30 '17 at 10:23

1

This question have many answers but, if you not solved your error yet, this could work:

Sometimes we import different versions from google products/APIs so, try to organize your gradle file to solve the: Mixing versions warning

edited Nov 30 '17 at 10:23

u354356007

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answered Nov 24 '17 at 11:55

Felipe Costa

84
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Kindly add some code snippet, if you got any. Thanks. – Chintan Soni Nov 24 '17 at 12:11

score 1 · Answer 26 · answered Jan 29 '18 at 10:46

1

I had the same problem and realised that the two separate jar files I had in my app/libs folder had the same packages as sub dependencies, which caused the conflict.

answered Jan 29 '18 at 10:46

Wilhelm

113
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score 1 · Answer 27 · answered Mar 26 '18 at 10:44

1

I've noticed this can happen (sometimes) when editing java files while Android Studio is building.

I solved this by manually deleting the build folder and running agin.

answered Mar 26 '18 at 10:44

Gil Moshayof

16,633
4
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score 1 · Answer 28 · answered May 21 '18 at 07:54

1

In case it helps someone, in my case I was using a custom package in release mode instead of in debug mode.

I just changed the package from "release" to "debug" and it worked.

answered May 21 '18 at 07:54

Suaro

312
2
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score 1 · Answer 29 · answered Jul 30 '18 at 07:34

1

Thing that worked for me.

Go to android folder of your app.
Run ./gradlew clean

answered Jul 30 '18 at 07:34

Vikas

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its just download gradle – sirmagid Sep 17 '19 at 10:39

score 1 · Answer 30 · edited Dec 05 '18 at 07:11

1

First, build -> clean project -> rebuild it again.

If its not working, then in your build.gradle, set the multiDexEnabled as true

eg:

defaultConfig {
    applicationId "com.example.myapplication"
    minSdkVersion 21
    targetSdkVersion 27
    multiDexEnabled true
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner"android.support.test.runner.AndroidJUnitRunner"
}

edited Dec 05 '18 at 07:11

adiga

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answered Dec 05 '18 at 06:58

CodMania

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score 0 · Answer 31 · edited Jun 20 '20 at 09:12

In my case, using :

I had the issue during transformClassesWithDexFor when the maximum heap size for the Gradle daemon is superior to 4Go. By changing my ~/gradle.properties with org.gradle.jvmargs=-Xmx2048m (meaning I reduce the heap size to 2Go instead of 4Go) the dex then runs in a separate process and I no longer have the issue.

14:52:26.412 [WARN] [org.gradle.api.Project]

Running dex as a separate process.

To run dex in process, the Gradle daemon needs a larger heap.

It currently has 2048 MB.

For faster builds, increase the maximum heap size for the Gradle daemon to at least 4608 MB (based on the dexOptions.javaMaxHeapSize = 4g).

To do this set org.gradle.jvmargs=-Xmx4608M in the project gradle.properties.

android : Error converting byte to dex

31 Answers31

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