com.android.dx.util.DexException: Multiple dex files define
android, ant, dex
Solution
Please check if the package includes com/android/vending/billing/IMarketBillingService is reference twice or more in your project settings.
Problem
I use ant release and got this error: ``` [dx] UNEXPECTED TOP-LEVEL EXCEPTION: [dx] com.android.dx.util.DexException: Multiple dex files define Lcom/android/vending/billing/IMarketBillingService; [dx] at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:580) [dx] at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:538) [dx] at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:519) [dx] at com.android.dx.merge.DexMerger.mergeDexBuffers(DexMerger.java:168) [dx] at com.android.dx.merge.DexMerger.merge(DexMerger.java:186) [dx] at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:300) [dx] at com.android.dx.command.dexer.Main.run(Main.java:232) [dx] at com.android.dx.command.dexer.Main.main(Main.java:174) [dx] at com.android.dx.command.Main.main(Main.java:91) ``` I have same error, but answers didn't help me I tried: - Reinstall android sdk to other dir - Remove bin/gen dirs and clean project - Remove and add libs in eclipse - Change android API from 17 to 10 - Make sure my bin folder is not included in my build path I have 1 main project and 2 lib projects (Facebook and Expansion files downloader) Thanks for answers!