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Android dex gives a BufferOverflowException when building

Posted by: admin March 10, 2020 Leave a comment


When compiling a specific Android project, and only on my Windows machine, I get a java.nio.BufferOverflowException during from dex. The problem occurs both when using Eclipse and when using Ant.

The output when using Ant is:

  [dex] Pre-Dexing C:\MyProject\libs\android-support-v4.jar -> android-support-v4-5f5341d3c1b10a79d7d93f9c1e64421e.jar
  [dex] Converting compiled files and external libraries into C:\MyProject\bin\classes.dex...
   [dx] java.nio.BufferOverflowException
   [dx]     at java.nio.Buffer.nextPutIndex(Buffer.java:499)
   [dx]     at java.nio.HeapByteBuffer.putShort(HeapByteBuffer.java:296)
   [dx]     at com.android.dex.Dex$Section.writeShort(Dex.java:818)
   [dx]     at com.android.dex.Dex$Section.writeTypeList(Dex.java:870)
   [dx]     at com.android.dx.merge.DexMerger$3.write(DexMerger.java:437)
   [dx]     at com.android.dx.merge.DexMerger$3.write(DexMerger.java:423)
   [dx]     at com.android.dx.merge.DexMerger$IdMerger.mergeUnsorted(DexMerger.java:317)
   [dx]     at com.android.dx.merge.DexMerger.mergeTypeLists(DexMerger.java:423)
   [dx]     at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:163)
   [dx]     at com.android.dx.merge.DexMerger.merge(DexMerger.java:187)
   [dx]     at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:439)
   [dx]     at com.android.dx.command.dexer.Main.runMonoDex(Main.java:287)
   [dx]     at com.android.dx.command.dexer.Main.run(Main.java:230)
   [dx]     at com.android.dx.command.dexer.Main.main(Main.java:199)
   [dx]     at com.android.dx.command.Main.main(Main.java:103)

C:\Users\Jaap\android-sdks\tools\ant\build.xml:892: The following error occurred while executing this line:
C:\Users\Jaap\android-sdks\tools\ant\build.xml:894: The following error occurred while executing this line:
C:\Users\Jaap\android-sdks\tools\ant\build.xml:906: The following error occurred while executing this line:
C:\Users\Jaap\android-sdks\tools\ant\build.xml:284: null returned: 2

When using Eclipse the message is shorter but similar:

[2013-11-01 14:29:44] APK file is not created for Project: 
[2013-11-01 14:29:46 - Dex Loader] Unable to execute dex: java.nio.BufferOverflowException. Check the Eclipse log for stack trace.
[2013-11-01 14:29:46 - MyProject] Conversion to Dalvik format failed: Unable to execute dex: java.nio.BufferOverflowException. Check the Eclipse log for stack trace.

Like I said, I don’t have this problem on my MacBook, even though they are both upgraded to the latest versions of the Android Build tools: 19.0.0.

How to&Answers:

No need to downgrade the build tools back to 18.1.11, this issue is fixed with build tools 19.0.1.

If you can’t use 19.0.1 for some reason then:

Make sure that the value of android:targetSdkVersion in AndroidManifest.xml matches target=android-<value> in project.properties. If these two values are not the same, building with build tools version 19.0.0 will end in the BufferOverflowException. Source

There is also some indication from comments on this post that you need to target at least 19 (android-19). Please leave a comment if this solution also works if your target is < 19.

This is how the fix looks for my project. The related AOSP issue is #61710.

1 If you really need to downgrade, you don’t need to uninstall build tools 19.0.0, simply install 18.1.1 and add sdk.buildtools=18.1.1 to the local.properties file.


Try what van said:

Right click your projectandroid toolsandroid support library.

Hope this helps 🙂


Same problem here. Reverted to build tools 18.1.1, restarted Eclipse and that fixed it.


I was able to get my problem project to build by adding this extra line:


…to my project.properties file, which is present in the root of the project folder. All other approaches seemed to fail for me.


Right click on project >> Properties >> Android >> API Level 18 worked for me. But before I did that I did right click on project >> Android Tools >> Add Support Library and restarted Eclipse. You may have to play around with your selected API level.


After the installation of the new SDK, there is a new folder, “Android Dependencies”, under your project file. If you right click and remove it from the build path, you will again be able to build your project.



right click your project > android tools > android support library

Clean your project and try to built.


I had the same problem after updating to Revision 19. Just do not forget to update ADT, https://dl-ssl.google.com/android/eclipse/. After this, I was able to build project with the latest revision.


I fixed this problem without downloading the support library or reverting the build tools to 18.1.1.
I simply changed the API level to 16+ and the problem vanished. Hope it will help.


None of the other solutions here worked for me after upgrading to Android Studio 0.4.0 and Gradle 1.9.

I resolved the problem by downloading Build Tools 19.0.1 and updating the following line in my build.gradle files:

buildToolsVersion '19.0.0'


buildToolsVersion '19.0.1'


For the ones facing issue with IntelliJ IDEA 13, uninstall Build Tools 19.


Had the same issue with target version 19 on both project.properties and AndroidManifest.xml with Ant.

Fixed it by:

  • Uninstalled Android SDK Build-Tools 19.0.1
  • Installed Android SDK Build-Tools 19.0.2

I think @Al-Kathiri-Khalid is spot on. The issue is only due to missing support for the API level in Build Tools.


I had the same problem, though my project did not use the support library. Adding libs/android-support-v4.jar to the project worked around the problem without needing to revert the build tools back from v19.


I solved this problem. Just make this change in the project properties file:


And in the manifest file:

uses-sdk android:minSdkVersion="8"


Add the Library file in project..
Project->right click->Properties->android->Library-> click Add and select the Library Project and give apply and ok..
then, clean the project and run again.. if you want restart the eclipse..

And also, sometimes, need to update Android SDK build tools..


What worked for me was this:
I opened the project.properties file from the root of my project and changed target=android-8 to target=android-17


java.nio.BufferOverflowException during from dex error
This means you don’t have the supporting API for that level hence the build fails, there are a number of ways you can fix this.

Check your manifest file uses-sdk android:minSdkVersion=”4″ and android:targetSdkVersion=”14″

Any of the below will fix the problem:-

  • Download the required API level (This might take time) and run your application again
  • Quick dirty fix change your Project target in project.properties
    to your new target target=android-4
  • Quick clean fix, change the SdkVersion in your manifest and Clean
    your project to add the changes to your project.properties (My favorite)


I removed the previous Android SDK and Eclipse. I installed the ADT bundle and it works…

This fixed the problem of BufferOverflow on Dex that started after I got API 19. I was previously using Eclipse with Android SDK installed as an add-on package.


Right click on Project>>Properties>>Android and select API Level greater than 15


Add google-play-services_lib to your project by right clicking on project and selecting Project>>Properties>>Android>>Add