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Editorial Team
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Asked: 2026-06-07T15:58:22+00:00

I have a big project with many library projects as well as many packages

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I have a big project with many library projects as well as many packages and classes in source code.

Using ADT (r20) in Eclipse (v4.2) to build, I get this error:

[2012-07-08 09:05:33 – AndroidUIPatterns] Dx trouble writing output:
Too many fields: 69379; max is 65536. By package:

19 android.app
14 android.content.pm
 5 android.content.res
 2 android.gesture
39 android.graphics
 8 android.graphics.drawable
13 android.os
 3 android.provider

…
…
[2012-07-08 09:05:33 – AndroidUIPatterns] Conversion to Dalvik format failed with error 2

For full error log, your can see it here: http://pastie.org/4218297

It seems there is a maximum limit for number of package / class in an Android project?

I’ll appreciate all your help if anyone can tell me how to solve this error.

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1 Answer

  1. Editorial Team

    It’s a limitation of dx compiler that is currently limited to 65536 (2^16) field/method references per dex. It’s “being fixed” since 2010.

    The only solution now is to split application into multiple dex files, so no single dex file exceeds the 64k limit.

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