Android Error "Conversion to Dalvik format failed with error 2"?

Question

I am using flurry sdk in my application, before adding this flurry jar file it's working fine with out any errors. after adding flurry jar file in libs folder i am getting this error when i am compiling application in Eclipse.

trouble writing output: Too many methods: 70205; max is 65536. By package:
  5 android.accessibilityservice
  1 android.animation
  2 android.annotation
315 android.app
136 android.content
 28 android.content.pm
 47 android.content.res
 35 android.database
 14 android.database.sqlite
  8 android.gesture
113 android.graphics
 44 android.graphics.drawable
  1 android.graphics.drawable.shapes
 11 android.location
 27 android.media
 40 android.net
  1 android.net.http
  1 android.net.wifi
 96 android.os

[2013-03-04 16:42:13 - myapp] Conversion to Dalvik format failed with error 2

I have idea about how to solve error 1 but this is the new error for me unable to solve. i searched a lot did't get any solution for this.

when i remove this jar file it's working fine. if it has in libs not able to run the application. Why i am getting this error.? what is the sollution for this..

have a look at this http://stackoverflow.com/questions/8805713/conversion-to-dalvik-format-failed-with-error-2-adt-16-0-1 — itsrajesh4uguys, Mar 04 '13 at 13:45
http://stackoverflow.com/questions/4634936/android-development-conversion-to-dalvik-format-failed-with-error-1 check this too — itsrajesh4uguys, Mar 04 '13 at 13:46
Hi Raja,How did you finally solved your problem? with proguarad or custom ant build script.Please help I am facing problem and could not resolve it. — Ashwin N Bhanushali, Nov 26 '13 at 16:33
problem with more jar files in my application, so i removed some of them which are not mandatory in my app. — RajaReddy PolamReddy, Nov 27 '13 at 04:41

score 12 · Accepted Answer · answered Mar 25 '13 at 10:42

Since the error is trouble writing output: Too many methods: 70205; max is 65536, "the sollution for this" is to reduce your method count by about 10%.

Usually this is the fault of having too many JARs with too many methods, though it is certainly conceivable that you wrote tens of thousands of methods yourself.

Try to find some JAR that you do not need and remove it. For example, you can use ProGuard to report the dead code within your app -- perhaps there is a dependent JAR of some library that the library ordinarily needs, but the way you happen to use the library is not needed.

ProGuard itself can also be used just to remove that dead code from your app, without all the normal obfuscation stuff. However, this is not part of the normal build process, so you'd have to somehow cook up an Ant script for this.

how to use ProGuard to find dead code in my application, is it possible to remove dead code from my jar files — RajaReddy PolamReddy, Mar 28 '13 at 06:44
Hi CommonsWare I try to read xlsx files in android and I got above said error can give me an example of proguard or custom ant script so that i can resolve it? — Ashwin N Bhanushali, Nov 26 '13 at 17:14

score 1 · Answer 2 · answered Oct 15 '13 at 01:55

1

I was having that error because I was including Google Apis into my project.

answered Oct 15 '13 at 01:55

PSchuette

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score 1 · Answer 3 · answered Oct 16 '13 at 09:38

What I have observed is, we should not put jars file directly inside a folder like

libs/x.jar

When I created a sub-folder within the libs or any folder for that sake like

libs/temp/x.jar

You can load how many jar files in that temp folder. That way I was able to avoid the error. It just need not be libs folder itself. The name can be anything.

This has to be done only if the jar files are high in number. Otherwise you can put directly in the libs folder.

I don't really understand how does it make any difference? – Kerem Jul 02 '14 at 21:05 — Kerem, Jul 02 '14 at 21:05

Android Error "Conversion to Dalvik format failed with error 2"?

3 Answers3

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