Unable to execute dex Multiple dex files define

Question

I know this question has been asked  here a few times before  But i haven t seen any possible solution yet  Before i make the project  Run as Android Application    if i do not clean it  i receive the following error and have to restart Eclipse     and clean again   Conversion to Dalvik format failed  Unable to execute dex  Multiple dex files define      Lcom jstun core attribute MessageAttributeInterface    com jstun core    is a part of my src folder  of course i can t remove it  And even if i remove that package  another package will show up as an error like   Unable to execute dex  Multiple dex files define      Landroid support v4 app ActivityCompatHoneycomb    I ve seen this error since updating to ADT 15  i m using Eclipse Galileo on Ubuntu Do you have any idea  Thanks for any reply

User · Answer

I have encountered a similar error today and the reason was that the support library was referenced by two library projects used by my app project but with different versions.

In more details: My app depends on 2 library projects

FaceBookSDK 3.0 -> which is referencing android-support-v4
ActionBarSherlock -> which is referencing android-support-v4 but with a modified version to support maps.

To solve the problem I had to make FaceBookSDK library depend on ABS library instead of the support library directly.

User · Answer

I removed Android dependencies from build path and it worked

User · Answer

If you are using cordova  try cordova clean command

User · Answer

I have had this issue and that doesn t mean  that the same library is loaded many times but System is trying to load a class with the same name and possibly same package name simultaneously  i e      com pack1 de and Class Geometry of library1 jar    and another    com pack1 de and Class Geometry of library2 jar    How should you approach   You should analyze which methods are being used  a method of library1 jar or library2    There are 2 Solutions     Rename a packagename and then dalvik interprets  that they are distinct classes  Or if you want to risk  purge the class  which doesn t contain the methode  which we really use    I hope that has clarified this often asked question

User · Answer

If some of you facing this problem with facebook-connent-plugin for phonegap   try to remove files in bin class com facebook android directory   -  and rebuild

User · Answer

I found below solution in eclipse   hope it works for you     Right click on the Project Name  Select Java Build Path  go to the tab Order and Export  Unchecked your  jar library s

User · Answer

This problem occurs when a same library is added into your project multiple times  If you haven t added the library multiple times intentionaly  check out the dependency private libraries of the libraries you have added in your project  most probably they have already included a library which is causing this conflict

User · Answer

I was also struggling to find this is issue  In my case what happened is while copying the apk to email  drag drop  - by mistake the apk was pasted in src folder in one of the packages  After removing the apk from source folder it worked fine

User · Answer

As others mentioned  this occurs when you have multiple copies of the same class in your build path  or elsewhere in your setup   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   You can test for this with     grep -r YourOffendingClassName YourApp   grep jar   Deleting the extra copy in bin classes solved the problem - unsure why Eclipse made a copy there

User · Answer

The Solution for me was just to do following things    - lib directory in your project and delete any multiple elements  Project- Properties- Java build Path and delete any Dependency Library was added automatically and not by you  - Apply Restart Eclipse IDE Now Clean the project  Run Debug on Device Emulator the project     Good Luck

User · Answer

ULTRA simple solution and finest   Remove everything in Right Click Main Project s Folder -  Properties -  Java Build Path except Android X Y  where X Y is the version in android   Clean  and Build  Done   Make sure before of that to have a single android-support-v4 jar

User · Answer

Well for me  I deleted the file in the libs folder called android support v4 jar and it all worked out  Goodluck

User · Answer

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

User · Answer

This error happened to me when in my app s project I referenced a Library project in my Eclipse workspace  in my case the Facebook SDK  and at the same time included the Facebook SDK as a jar in the libs folder  Removing the library reference but keeping the jar in the libs folder removed the error

User · Answer

I had the same error happening and every time I fixed it  it would come back after I restarted Eclipse   First of all  as other people said  make sure you do not have multiple copies of the same  jar file around your projects   In my case  I had a main project that used ActionBarSherlock  among other library projects   The trick that worked for me was going into ActionBarSherlock -- gt  Properties -- gt  Java Build path -- gt  Order of Export and unselecting Android Private Libraries  Then going into Project - gt  Clean and now you should be able to build the project correctly   Now  for some reason  every time I restart Eclipse  it automatically enables that checkbox  so I have to repeat this process again   Hope this helps some lost soul out there

User · Answer

I have same issue  what i tried is    List item Open Project Build Path  Select  Libraries  tab  Remove all library except the Android Library Adding all required JARs Files  And Done    It works for me  thanks

User · Answer

I have also faced this problem in my project  AVD is not able to reload assets lib res and etc folder contexts  problem   Dex Loader  Unable to execute dex  Multiple dex files define Landroid support v4 accessibilityservice AccessibilityServiceInfoCompat AccessibilityServiceInfoVersionImpl   Then I created new projects and copied MainActivity java activity main xml  drawable context  Then delete old project from package explore restart your Eclipse and AVD  My project is now working properly         I hope this steps will help u little bit  folks

User · Answer

For me I deleted android-support-v4 jar from lib folder and also removed from build path

User · Answer

Even after going through multiple answers  no solution worked for me   I deleted  Android Dependencies  from the build path  Added all the jar files again to the build path and the error was gone  Somehow eclipse seemed to cache the things

User · Answer

For me the issue was that  i had added a lib project autobahn lib  earlier and later switched the to Jar file of the same library Though i had removed references to the older library project  i was getting this error  Following all the answers here i checked the build path etc  But i haven t added these libs to build path manually  So i had nothing to remove   Finally came across this folder      bin dexedLibs   I noticed that there were two jar files with the same name corresponding to autobahn Android which was causing the conflict  So i deleted all the jar files in the dexedLibs folder and rebuild the project  That resolved the issue

User · Answer

My problem at first was       Unable to execute dex  java nio BufferOverflowException  Check the Eclipse log for stack trace    1  I Right click on my project -  Android Tools -  Add Support Library  Run my app   Didn t work so I keep it going     2  Right click on my project again -  Properties -  Android -  Check Android 4 1 2  16  on Project Build Target  Run the app again   and get this      Unable to execute dex  Multiple dex files define Landroid support v4 app BackStackState    3  So I went to the  lib  folder on my project and delete the  old  Android support library jar  Run the app and cross fingers and        IT WORKS   Hope it helps someone   Thanks people

User · Answer

Right click on project and go to build Path gt configuration build path Select library tab and click on support-v4 library and click on remove Click on OK   and then clean your project and run it will work    -

User · Answer

To add the myriad of other potential sources     I had updated all the libraries in my project s lib folder but then Eclipse  helpfully  reinstalled all the original libraries   There was no longer any reference inside Eclipse to these libraries but the external dex-maker program just grabbed all the files in the lib directory and thus got two versions of several library  jar files   git status identified the new files and git clean -f got rid of them for me  though I sometimes had to wait or restart Eclipse on Windows because it still had the files open from the copy

User · Answer

This is a build path issue   Make sure your bin folder is not included in your build path   Right click on your project - gt  go to properties - gt   Build Path   Make sure that Honeycomb library is in your libs  folder and not in your source folder   Include the libraries in libs  individually in the build path  BTW  you may want to bring in the android-support-v4 library to get Ice Cream Sandwich support instead of the Honeycomb support library

User · Answer

In case anyone else bangs their head on this issue like I just did   My case involved a chain of library projects  Simply doing a project clean on all of the libraries fixed everything

User · Answer

I had this problem in Intellij and it was because the ActionBarSherlock library I added to my project defined the android-support-v4 jar as a compile dependency and this jar was already included in my project so there were multiple copies version of DEX at compile time   The solution was to change the ActionBarSherlock module dependency for this jar to be Runtime instead of compile  as my project was already providing it

User · Answer

Modify the maximun memory parameter in eclipse ini  -Xmx1024m   And restart your computer   It worked for me

User · Answer

I m leaving this answer for someone who gets in this scenario as I did     I stumbled here and there before noticing that I mistakenly dragged and dropped the Support Library JAR file into my src folder and it was lying there   Since I had no idea how it happened or when I dropped it there  I could never imagine something was wrong there   I was getting the same error  I found the problem after sometime and removed it   Project is now working fine

User · Answer

I got this error for another reason  I was mistaking adding both the v4 AND the v13 support library  This was not necessary for me since my minSdkVersion is 15   I fixed it by only including the v13 support library  Also  make sure to check mark the library in your exported library build path in eclipse  I also moved it to the top

User · Answer

I had same problem  I had to delete the  apk file and then it worked

User · Answer

To me  just go to Project Properties    Java Build Path    Order and Export  Uncheck all external library  as the image bellow  It work for me  Hope this help

[java] Unable to execute dex: Multiple dex files define

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