Build fail in android

[roysG]

When i do the implement for android, i get error:

nknown source file : UNEXPECTED TOP-LEVEL EXCEPTION:
Unknown source file : com.android.dex.DexException: Multiple dex files define Landroid/support/v7/appcompat/R$anim;
Unknown source file : at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:596)
Unknown source file : at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:554)
Unknown source file : at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:535)
Unknown source file : at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:171)
Unknown source file : at com.android.dx.merge.DexMerger.merge(DexMerger.java:189)
Unknown source file : at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:502)
Unknown source file : at com.android.dx.command.dexer.Main.runMonoDex(Main.java:334)
Unknown source file : at com.android.dx.command.dexer.Main.run(Main.java:277)
Unknown source file : at com.android.dx.command.dexer.Main.main(Main.java:245)
Unknown source file : at com.android.dx.command.Main.main(Main.java:106)

:app:dexDebug FAILED

React native version: 0.33

[cmcewen]

@roysG do you get this with the example project? it seems to be an issue with your MultiDex configuration

[roysG]

No,
But i fixed it by clean my gradle