Unable to execute dex Multiple dex files define Lcom myapp R array

Question

Since updating to ADT 14 I can no longer build my project  It was building fine prior to updating    The error    2011-10-23 16 23 29 - Dex Loader  Unable to execute dex  Multiple dex files define Lcom myapp R array   2011-10-23 16 23 29 - myProj  Conversion to Dalvik format failed  Unable to execute dex  Multiple dex files define Lcom myapp R array    Similar issues have been reported and I have tried the suggestions there including   Restarting Eclipse  Cleaning the project and rebuild - Disable  Project- Build Automatically  option  then  Clean  and  Build  project  then try to run  reset  Build Automatically  option to On Re-installing the Android Developer Tools Re-installing Eclipse  updated to the latest version 3 7 1  Created a new project importing from the file system Created a new project from subversion

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I had tried most of the above solution and in past some of them had worked.

But this time none of them worked, so i had deleted my library project's .jar file. and rebuild both library and application project.

And this time it's worked!

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I had the same problem  quite weird because it was happening only when using Eclipse  but it was OK with Ant   This is how I fixed it    Right click on the Project Name Select Build Path -  Configure Build Path In Java Build Path  go to the tab Order and Export Uncheck your  jar library   Only sometimes  In Order and Export tab I did not have any jar library there  so I have unchecked Android Private Libraries item  Now my project is running

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Spliting Google Play Service could help you   https   developers google com android guides setup split  so instead of adding just play-services    compile  com google android gms play-services 7 5 0    you add only what you need       Google Maps only compile  com google android gms play-services-maps 7 5 0

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Select the project in Project Explorer  right-click and select Properties -  Java Build Path -  Source -  Check the box for Allow output folders for source folders

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Make sure that   android-support-v4 jar  is unchecked in Order and Export tab under Java Build Path  Follow the steps    Project Properties Java Build path Order and Export Uncheck  android-support-v4 jar

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As others have mentioned  this occurs when you have multiple copies of the same class in your build path - including bin  in your classpath is one way to guarantee this problem   For me  this occurred when I had added android-support-v4 jar to my libs  folder  and somehow eclipse added a second copy to bin classes android-support-v4 jar   Deleting the extra copy in bin classes solved the problem - unsure why Eclipse made a copy there   You can test for this with     grep -r YourOffendingClassName YourApp   grep jar

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I ran into this when I upgraded from adt 14 to 15 and to get it to work I ended up just deleting the  eclipse folder  along with my settings  and re-installing the adt 15

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Delete generated R package from your referenced library  Sometimes Clean and Rebuild doesn t remove old R generated files

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This problem was happening me  I had an external  jar in my libs folder called gson-2 2 2 jar but for some reason there were two of them  gson-2 2 2 jar and gson-2 2 2 jar 1   I simply deleted the latter and my project built fine again

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My problem was resolved after cleaning up some directories and files left over from the previous versions of the tools  ADT Rev 14 changes where binaries are stored  I deleted the entire bin directory  restarted Eclipse and cleaned the build and forced a rebuild  That seemed to do the trick initially but the problem came back after the next run    I finally discovered that my bin directory was included in the project build path  I excluded bin from the build path and repeated the steps above  This resolved my problem

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Deleting the bin folder was not enough  I also deleted the gen folder  Then after two rebuilds the dex error message was gone

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I am facing the same problem  The problem I found that I have a library project  in that project s manifest file  there is no targetSdkVersion property  I have added that property under  uses-sdk   tag  Then clean my project  Now my app runs normally

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NON OF THE ABOVE METHODE WORKED FOR ME BUT MINE IS WORKED LIKE A CHARM   The problem happens when user builds the dependent library with eclipse  So to get the solution  Step 1  Delete the library  like support library project v4 or v13  from Eclipse with delete workspace source permanantly  Step 2  Re import the library and include it to your project  Step 3  Clean and Rebuild  DONE

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I m late to this party  but adding my own experience so I can find it again later     I ran into this problem after upgrading the android sdk and eclipse ad-ins   No upgrade goes unpunished   The problem for me was related to library projects  my app references both standard java projects and android library projects   I noticed the Java Build Path settings were including the android library projects src and res folders in the Source list  upvotes to everyone that mention bin in source being issue  src and res was also an issue    So the solution was    Remove all referenced Android libraries source and project references from the Java Build Path section of the settings in both Source list and Project list Make sure pure java dependencies are listed in Project list  and Checked in the Order and Export tab so the classes are included in the apk Make sure all Android library dependencies are listed on the Android section of project properties  in the library section below the checked SDK versions    It was along way to piece all that together from the other solutions   Phew

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I converted a non-library project to a library project  but it had a previously built jar file in the libs folder  Removing this jar file caused this error to go away

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Modify your eclipse ini file and set the maximum memory parameter to  -Xmx1024m   Then restart your computer   It worked for me

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This happen when in our app  we have libs folder with gson jar  eg  gson-2 2 4 jar   In sametime  our Google Play Service library already have Gson as well   i have remove it from my app and its work fine now

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i had the same problem unable to execute multipledex files in android --lorg xhtml CSS  i deleted 2external jars files in lib folder--core-renderer-3043e0f89ffb2 jar  core-renderer-minimal-e70d6a jar and my project built fine again

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Try deleting R java and letting eclipse re-generate it

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I had a similar problem when I added ActionBarSherlock as a library in my project  Eclipse ADT v21 0 pre-created dex files supposedly for faster building of the project  These dex files were the same as some of the jar files in my lib folder  So just keep one and delete the other  I deleted the ones in the lib folder as the dexed files were generating automatically

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Found another scenario where this issue happens  The problem was that the libs folder was used as a Source in the project preferences  so it was exported twice  Resolved by right clicking on the libs folder -  Build Path -  Remove from Build Path

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After trying all the other suggestions with no luck  I deleted all the contents of my projects  bin  directory  then ran eclipse again and it worked

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go to  bin dexedLibs and remove all the jars of the already removed libraries  then clean

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Close eclipse  Delete bin folder inside your project folder  Start eclipse and clean your project  Now run and the problem should be gone

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Solved for me   by removing the duplicate library  JAR file  then remove BuildConfig java file  Clean project and its work

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For me this problem only exists as long as there are Android library projects involved in my project  So when I remove all the libraries and do as you said I can run my app again  If there are libraries involved even the bin-removal-trick trick won  work   I don t get why this bug first appeared today since I m using ADT 14 for several days now  Well there were other bugs that kept me happy though

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I resolved this issue in my project by deleting a library   Reason  I included a library-project in my project  and mistakenly did not removed the previous lib from my project  so when I was running the project then same library dex files were generating twice  when I removed the same-library from lib folder of my project  the error gone away and build was created successfully  I hope others may face the same issue

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I was basically facing the same issue  I deleted the BIN folder  then removed unused jar files for Order and Import from eclipse  IT WORKED after that

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The issue is that  Android Dependencies  keep the reference to the old AdMob SDK even after    remove the old admob sdk from build path ant clean eclipse clean delete the bin and gen folders manually close   open eclipse update sdk tools update adt   The solution is to actually delete the AdMob SDK JAR from your computer  not just from the project

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This error can happen if you have two jars that contains the same class names  e g  I had two library  jsr311-api-1 1 1 jar  and jersey-core-1 17 1 jar  both containing the class javax ws rs ApplicationPath  I removed jsr311-api-1 1 1 jar and it worked fine

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Solved for me   Eclipse project properties- Java build path- Order and export  Uncheck Android private libraries

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I was getting this error after adding the facebooksdk jar to a project that already had dependencies on the android-support-v4 jar  Since the facebooksdk jar already includes its own android-support-v4 jar there were conflicts  Removing the earlier android-support-v4 jar from the projects Properties   Java Build Path   Libraries resolved the issue for me

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After reading Terrys response about deleting the bin directory and Larrys about the the location of the ANT directory   I moved the files located in my projects BIN directory to the BIN CLASSES and im up and running   Edit 1 Then failed on second run   doh  Edit 2 So closed Eclipse moved files back to original location and its all working    um what  I don t pretend to know why this worked  Will update if any changes   Edit 3 I have noted from my backups that there were indeed duplicate files in the BIN directory and BIN CLASSES   So the answer is  don t have files in both locations  At least for me that s what worked

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If you use  com google android gms play-services   You can add what you really need to look at the following list       Google  com google android gms play-services-plus 10 0 1    Google Account Login com google android gms play-services-auth 10 0 1    Google Actions  Base Client Library com google android gms play-services-base 10 0 1    Google Address API com google android gms play-services-identity 10 0 1    Firebase App Indexing com google firebase firebase-appindexing 10 0 1   Google Analytics com google android gms play-services-analytics 10 0 1    Google Awareness com google android gms play-services-awareness 10 0 1    Google Cast com google android gms play-services-cast 10 0 1    Google Cloud Messaging com google android gms play-services-gcm 10 0 1    Google Drive com google android gms play-services-drive 10 0 1    Google Fit com google android gms play-services-fitness 10 0 1    Google Location and Activity Recognition com google android gms play-services-location 10 0 1    Google Maps com google android gms play-services-maps 10 0 1    Google Mobile Ads com google android gms play-services-ads 10 0 1    Google Places com google android gms play-services-places 10 0 1    Mobile Vision com google android gms play-services-vision 10 0 1    Google Nearby com google android gms play-services-nearby 10 0 1    Google Panorama Viewer com google android gms play-services-panorama 10 0 1    Google Play Game services com google android gms play-services-games 10 0 1    SafetyNet com google android gms play-services-safetynet 10 0 1    Android Pay com google android gms play-services-wallet 10 0 1    Android Wear com google android gms play-services-wearable 10 0 1

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I had two different versions of Cordova  jar-files in my libs folder  I deleted the one I wasn t even using and it worked right away   Weird because I didn t notice that before and it worked before and then suddenly stopped working

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You have probably installed r14  this error may have been caused due to the platform tools update  you have to re-install your sdk

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I had this problem and solved it by changing the path of the  jar for change directory  but the  jar pulled the other side  change the path and I entered without problem

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None of the above helped  It was a simple problem in the end   I had a project which uses the FacebookSDK and ViewPagerIndicator as library projects  All were built on Android API 16 and those two projects used the android support library vX  X not being 16    I added an external JAR to both those projects and pointed it to  extras android v4    And also removed the v4 jar I had in their libs folders   Clean all projects and re-build   Voilla   The exact error I was receiving  Unable to execute dex  Multiple dex files define Landroid support v4 view PagerAdapter  Conversion to Dalvik format failed  Unable to execute dex  Multiple dex files define Landroid support v4 view PagerAdapter

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Solution for me    BACK UP YOUR CODE  Navigate to your project workspace  not your project  and run the following commands   dev1 workspace  cd   Documents workspace  metadata  plugins  dev1 workspace  rm -rf org eclipse core resources Navigate to your Eclipse directory and type this command   dev1 eclipse    eclipse clear  Eclipse will start with an empty workspace - don t worry your projects are still there  Simple create new project from existing resource and things should be gravy    The exact error I was receiving   2012-02-07 14 15 53 - Dex Loader  Unable to execute dex  Multiple dex files define Landroid support v4 view PagerAdapter   2012-02-07 14 15 53 - ProjectCloud  Conversion to Dalvik format failed  Unable to execute dex  Multiple dex files define Landroid support v4 view PagerAdapter

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I had two related but not identical guava libraries in the  libs directory  after I removed one  the problem went away

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I have several library projects with the same package name specified in the AndroidManifest  so no duplicate field names are generated by R java   I had to remove any permissions and activities from the AndroidManifest xml for all library projects to remove the error so Manifest java wasn t created multiple times  Hopefully this can help someone

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The ADT R14 update changes where the classes go to the bin classes directory  see http   tools android com recent buildchangesinrevision14   If you are using ANT  you should change the path for your classes from bin to bin classes  This worked for me

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This was the top result when I searched for this error in Google    Though the question doesn t ask how to solve this issue in regards to React Native  I thought I would share anyway for anyone who ends up here and is using React Native   From the project root run    cd android  amp  amp    gradlew clean  Mac - Bash Terminal  cd android  amp  gradlew clean  Windows - Command Prompt    Then react-native run-android to build and run again

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For me I had pointed to a jar file in my builtPath which wasn t actually in that path anymore

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I was facing the same issue then i saw while pushing my app  some jar files which were loaded  twice   hence multiple dex error  Just go to your project properties -  Java Build Path  and try unchecking jar which is being loaded twice

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Conversion to Dalvik format failed  Unable to execute dex  Multiple dex files define Lcom google zxing BarcodeFormat   Posting this answer for those receiving this error with regards to the barcode scanner plugin from zxing   Just delete the jar file in the libs folder  Should be project libs com google zxing client android captureactivity jar

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Go to Project properties and Java Build Path and unchecked the Android Private Libraries     Done

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This error occurred to me when I imported a  jar file  as a matter of fact it was httpmime-4 3 jar  and tried to use it  For me the solution was easy  I removed the  jar file from the libs folder and deleted it from Order and Export  Ran the project again  it worked  so I added the  jar file again and it was finally okay

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For me  I just right click on project -  Build path -  configure build path -  Libraries -  remove dependency  after it works

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I got the same error message with the GooglePlayService library project google-play-services jar    We use maven  for this reason I have to add the Library in my local maven repository  mvn install install-file -Dfile xxx    Now the library is twice in the  Java Build Path  -  Libraries    once in Android Dependencies  and once in the Maven Dependencies    To fix the problem I need to remove the library from the google-play-services lib libs directory  the jar it is used automatically

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Check that your bin folder is not in the build path

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I removed Android dependencies from build path and it worked   Edit  ignore that  I had same jar in my maven dependencies and libs folder  I removed the one at the lib folder

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found a solution i believe          2013-04-28 23 56 09 - Dex Loader  Unable to execute dex  Multiple dex files define Lcom coremedia iso AbstractBoxParser 1    Where it says        Lcom coremedia iso AbstractBoxParser 1  that just happen to be the location of the library I imported that was causing the issue  Looked for com codemedia iso AbstractBoxParser 1 class and  AbstractBoxParser class     took that jar  unpackaged it  removed both of those files  then repackaged as a  zip  added to library  cleaned and worked  no more conflict for me   also no updates or additional downloads

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In my case  I delete the   apk  file in the  src com      directory  clean the project and run   I had tried all the previous suggestions and did not work for me

[android] Unable to execute dex: Multiple dex files define Lcom/myapp/R$array;

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