Error building Player: CommandInvokationFailure: Unable to convert classes into dex format. See the Console for details. /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/bin/java -Xmx2048M -Dcom.android.sdkmanager.toolsdir="/Users/android-dev/sdk/tools" -Dfile.encoding=UTF8 -jar "/Applications/Unity/Unity.app/Contents/BuildTargetTools/AndroidPlayer/sdktools.jar" - stderr[ UNEXPECTED TOP-LEVEL EXCEPTION: java.lang.IllegalArgumentException: already added: Lnd/sdk/u3ddemo/R$attr; at com.android.dx.dex.file.ClassDefsSection.add(ClassDefsSection.java:122) at com.android.dx.dex.file.DexFile.add(DexFile.java:161) at com.android.dx.command.dexer.Main.processClass(Main.java:732) at com.android.dx.command.dexer.Main.processFileBytes(Main.java:673) at com.android.dx.command.dexer.Main.access$300(Main.java:83) at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:602) at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:284) at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:166) at com.android.dx.cf.direct.ClassPathOpener.processDirectory(ClassPathOpener.java:229) at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:158) at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:144) at com.android.dx.command.dexer.Main.processOne(Main.java:632) at com.android.dx.command.dexer.Main.processAllFiles(Main.java:510) at com.android.dx.command.dexer.Main.runMonoDex(Main.java:280) at com.android.dx.command.dexer.Main.run(Main.java:246) at com.android.dx.command.dexer.Main.main(Main.java:215) at com.android.dx.command.Main.main(Main.java:106) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at SDKMain.main(SDKMain.java:129) 1 error; aborting ] stdout[ processing archive bin/classes.jar... processing com/unity3d/player/a$1.class... processing com/unity3d/player/a$2.class... processing com/unity3d/player/a$a.class... processing com/unity3d/player/a.class... processing com/unity3d/player/b$1.class... processing com/unity3d/player/b$2.class... processing com/unity3d/player/b.class... processing com/unity3d/player/c.class... processing com/unity3d/player/d$1.class... processing com/unity3d/player/d$2.class... processing com/unity3d/player/d.class... processing com/unity3d/player/e.class... processing com/unity3d/player/f.class... processing com/unity3d/player/g.class... processing com/unity3d/player/h.class... processing com/unity3d/player/i.class... processing com/unity3d/player/j$1.class... processing com/unity3d/player/j$2$1$1.class... processing com/unity3d/player/j$2$1.class... processing com/unity3d/player/j$2.class... processing com/unity3d/player/j.class... processing com/unity3d/player/k$1.class... processing com/unity3d/player/k.class... processing com/unity3d/player/l.class... processing com/unity3d/player/m.class... processing com/unity3d/player/n$1.class... processing com/unity3d/player/n.class... processing com/unity3d/player/NativeLoader.class... processing com/unity3d/player/o.class... processing com/unity3d/player/ReflectionHelper$1.class... processing com/unity3d/player/ReflectionHelper$a.class... processing com/unity3d/player/ReflectionHelper.class... processing com/unity3d/player/p.class... processing com/unity3d/player/q$1.class... processing com/unity3d/player/q$2.class... processing com/unity3d/player/q$3.class... processing com/unity3d/player/q.class... processing com/unity3d/player/r.class... processing com/unity3d/player/s.class... processing com/unity3d/player/UnityPlayer$1.class... processing com/unity3d/player/UnityPlayer$2.class... processing com/unity3d/player/UnityPlayer$4.class... processing com/unity3d/player/UnityPlayer$5.class... processing com/unity3d/player/UnityPlayer$6.class... processing com/unity3d/player/UnityPlayer$7.class... processing com/unity3d/player/UnityPlayer$8.class... processing com/unity3d/player/UnityPlayer$9.class... processing com/unity3d/player/UnityPlayer$10.class... processing com/unity3d/player/UnityPlayer$11.class... processing com/unity3d/player/UnityPlayer$12.class... processing com/unity3d/player/UnityPlayer$13$1.class... processing com/unity3d/player/UnityPlayer$13.class... processing com/unity3d/player/UnityPlayer$3.class... processing com/unity3d/player/UnityPlayer$14.class... processing com/unity3d/player/UnityPlayer$15.class... processing com/unity3d/player/UnityPlayer$16.class... processing com/unity3d/player/UnityPlayer$17.class... processing com/unity3d/player/UnityPlayer$18.class... processing com/unity3d/player/UnityPlayer$19.class... processing com/unity3d/player/UnityPlayer$a.class... processing com/unity3d/player/UnityPlayer$b.class... processing com/unity3d/player/UnityPlayer$c.class... processing com/unity3d/player/UnityPlayer.class... processing com/unity3d/player/UnityPlayerActivity.class... processing com/unity3d/player/UnityPlayerNativeActivity.class... processing com/unity3d/player/UnityPlayerProxyActivity.class... processing com/unity3d/player/t.class... processing com/unity3d/player/u$1.class... processing com/unity3d/player/u.class... processing com/unity3d/player/WWW.class... processing org/fmod/FMODAudioDevice$a.class... processing org/fmod/FMODAudioDevice.class... processing org/fmod/a.class... processing bin/classes/./nd/sdk/u3ddemo/R$anim.class... processing bin/classes/./nd/sdk/u3ddemo/R$attr.class... processing bin/classes/./nd/sdk/u3ddemo/R$color.class... processing bin/classes/./nd/sdk/u3ddemo/R$dimen.class... processing bin/classes/./nd/sdk/u3ddemo/R$drawable.class... processing bin/classes/./nd/sdk/u3ddemo/R$id.class... processing bin/classes/./nd/sdk/u3ddemo/R$layout.class... processing bin/classes/./nd/sdk/u3ddemo/R$raw.class... processing bin/classes/./nd/sdk/u3ddemo/R$string.class... processing bin/classes/./nd/sdk/u3ddemo/R$style.class... processing bin/classes/./nd/sdk/u3ddemo/R.class... processing archive plugins/./myclass.jar... ignored resource META-INF/MANIFEST.MF processing nd/sdk/u3ddemo/BuildConfig.class... processing nd/sdk/u3ddemo/LoginActivity$1.class... processing nd/sdk/u3ddemo/LoginActivity.class... processing nd/sdk/u3ddemo/MainActivity$1.class... processing nd/sdk/u3ddemo/MainActivity$2.class... processing nd/sdk/u3ddemo/MainActivity$3.class... processing nd/sdk/u3ddemo/MainActivity$4$1.class... processing nd/sdk/u3ddemo/MainActivity$4.class... processing nd/sdk/u3ddemo/MainActivity$5.class... processing nd/sdk/u3ddemo/MainActivity$6.class... processing nd/sdk/u3ddemo/MainActivity$7.class... processing nd/sdk/u3ddemo/MainActivity$8.class... processing nd/sdk/u3ddemo/MainActivity$9.class... processing nd/sdk/u3ddemo/MainActivity.class... processing nd/sdk/u3ddemo/R$attr.class... processing archive plugins/./NdComPlatform.jar... ignored resource META-INF/MANIFEST.MF processing com/nd/commplatform/NdAppPromotionFlipperWindowController$1.class... processing com/nd/commplatform/NdAppPromotionFlipperWindowController$2.class... processing com/nd/commplatform/NdAppPromotionFlipperWindowController$a$1.class... processing com/nd/commplatform/NdAppPromotionFlipperWindowController$a.class... processing com/nd/commplatform/NdAppPromotionFlipperWindowController$b.class... processing com/nd/commplatform/NdAppPromotionFlipperWindowController$c.class... processing com/nd/commplatform/NdAppPromotionFlipperWindowController$d.class... processing com/nd/commplatform/NdAppPromotionFlipperWindowController.class... processing com/nd/commplatform/NdAppPromotionSliderWindowController$1.class... processing com/nd/commplatform/NdAppPromotionSliderWindowController$2.class... processing com/nd/commplatform/NdAppPromotionSliderWindowController$3.class... processing com/nd/commplatform/NdAppPromotionSliderWindowController$a$1.class... processing com/nd/commplatform/NdAppPromotionSliderWindowController$a.class... processing com/nd/commplatform/NdAppPromotionSliderWindowController$b.class... processing com/nd/commplatform/NdAppPromotionSliderWindowController.class... processing com/nd/commplatform/NdCallbackListener.class... processing com/nd/commplatform/NdCommplatform.class... processing com/nd/commplatform/d/c/a$1.class... processing com/nd/commplatform/d/c/a$2.class... processing com/nd/commplatform/d/c/a$3.class... processing com/nd/commplatform/d/c/a$4.class... processing com/nd/commplatform/d/c/a$5.class... processing com/nd/commplatform/d/c/a$6.class... processing com/nd/commplatform/d/c/a.class... processing com/nd/commplatform/d/c/b$1$1.class... processing com/nd/commplatform/d/c/b$1.class... processing com/nd/commplatform/d/c/b$2.class... processing com/nd/commplatform/d/c/b$3.class... processing com/nd/commplatform/d/c/b$4.class... processing com/nd/commplatform/d/c/b$5.class... processing com/nd/commplatform/d/c/b$6.class... processing com/nd/commplatform/d/c/b$7.class... processing com/nd/commplatform/d/c/b$8.class... processing com/nd/commplatform/d/c/b$9.class... processing com/nd/commplatform/d/c/b$10$1.class... processing com/nd/commplatform/d/c/b$10$2.class... processing com/nd/commplatform/d/c/b$10$3.class... processing com/nd/commplatform/d/c/b$10.class... processing com/nd/commplatform/d/c/b$11$1.class... processing com/nd/commplatform/d/c/b$11.class... processing com/nd/commplatform/d/c/b$12.class... processing com/nd/commplatform/d/c/b$13.class... processing com/nd/commplatform/d/c/b$14.class... processing com/nd/commplatform/d/c/b$15.class... processing com/nd/commplatform/d/c/b$16.class... processing com/nd/commplatform/d/c/b$17$1.class... processing com/nd/commplatform/d/c/b$17.class... processing com/nd/commplatform/d/c/b$18$1.class... processing com/nd/commplatform/d/c/b$18.class... processing com/nd/commplatform/d/c/b$19$1.class... processing com/nd/commplatform/d/c/b$19$2.class... processing com/nd/commplatform/d/c/b$19.class... processing com/nd/commplatform/d/c/b$20.class... processing com/nd/commplatform/d/c/b$21.class... processing com/nd/commplatform/d/c/b$22.class... processing com/nd/commplatform/d/c/b$23.class... processing com/nd/commplatform/d/c/b$24.class... processing com/nd/commplatform/d/c/b$25.class... processing com/nd/commplatform/d/c/b.class... processing com/nd/commplatform/NdErrorCode.class... processing com/nd/commplatform/NdMiscCallbackListener$OnLoginProcessListener.class... processing com/nd/commplatform/NdMiscCallbackListener$OnPayProcessListener.class... processing com/nd/commplatform/NdMiscCallbackListener$OnPlatformBackground.class... processing com/nd/commplatform/NdMiscCallbackListener$OnSessionInvalidListener.class... processing com/nd/commplatform/NdMiscCallbackListener$OnSwitchAccountListener.class... processing com/nd/commplatform/NdMiscCallbackListener$OnUserInfoChangeListener.class... processing com/nd/commplatform/NdMiscCallbackListener.class... processing com/nd/commplatform/d/c/c.class... processing com/nd/commplatform/d/c/d.class... processing com/nd/commplatform/d/c/e.class... processing com/nd/commplatform/d/c/f$1.class... processing com/nd/commplatform/d/c/f$a.class... processing com/nd/commplatform/d/c/f$b.class... processing com/nd/commplatform/d/c/f$c$1.class... processing com/nd/commplatform/d/c/f$c.class... processing com/nd/commplatform/d/c/f.class... processing com/nd/commplatform/d/c/g$1.class... processing com/nd/commplatform/d/c/g$2.class... processing com/nd/commplatform/d/c/g$3$1.class... processing com/nd/commplatform/d/c/g$3.class... processing com/nd/commplatform/d/c/g$4.class... processing com/nd/commplatform/d/c/g$5.class... processing com/nd/commplatform/d/c/g$6.class... processing com/nd/commplatform/d/c/g$7.class... processing com/nd/commplatform/d/c/g$8.class... processing com/nd/commplatform/d/c/g$9.class... processing com/nd/commplatform/d/c/g$10.class... processing com/nd/commplatform/d/c/g$11.class... processing com/nd/commplatform/d/c/g$12.class... processing com/nd/commplatform/d/c/g$13.class... processing com/nd/commplatform/d/c/g$14.class... processing com/nd/commplatform/d/c/g$a$1.class... processing com/nd/commplatform/d/c/g$a.class... processing com/nd/commplatform/d/c/g$b.class... processing com/nd/commplatform/d/c/g$c.class... processing com/nd/commplatform/d/c/g$d.class... processing com/nd/commplatform/d/c/g$e$1$1.class... processing com/nd/commplatform/d/c/g$e$1.class... processing com/nd/commplatform/d/c/g$e.class... processing com/nd/commplatform/d/c/g.class... processing com/nd/commplatform/d/c/h$1.class... processing com/nd/commplatform/d/c/h$a.class... processing com/nd/commplatform/d/c/h$b.class... processing com/nd/commplatform/d/c/h$c.class... processing com/nd/commplatform/d/c/h$d$1.class... processing com/nd/commplatform/d/c/h$d$2$1.class... processing com/nd/commplatform/d/c/h$d$2.class... processing com/nd/commplatform/d/c/h$d.class... processing com/nd/commplatform/d/c/h.class... processing com/nd/commplatform/d/c/i$1.class... processing com/nd/commplatform/d/c/i$2.class... processing com/nd/commplatform/d/c/i$3.class... processing com/nd/commplatform/d/c/i$4.class... processing com/nd/commplatform/d/c/i$a$1.class... processing com/nd/commplatform/d/c/i$a$2.class... processing com/nd/commplatform/d/c/i$a$3.class... processing com/nd/commplatform/d/c/i$a.class... processing com/nd/commplatform/d/c/i$b$1.class... processing com/nd/commplatform/d/c/i$b.class... processing com/nd/commplatform/d/c/i.class... processing com/nd/commplatform/d/c/j$1.class... processing com/nd/commplatform/d/c/j$a.class... processing com/nd/commplatform/d/c/j$b.class... processing com/nd/commplatform/d/c/j.class... processing com/nd/commplatform/d/c/k.class... processing com/nd/commplatform/d/c/l$1.class... processing com/nd/commplatform/d/c/l$2.class... processing com/nd/commplatform/d/c/l$3.class... processing com/nd/commplatform/d/c/l$4$1.class... processing com/nd/commplatform/d/c/l$4.class... processing com/nd/commplatform/d/c/l$a.class... processing com/nd/commplatform/d/c/l$b.class... processing com/nd/commplatform/d/c/l$c.class... processing com/nd/commplatform/d/c/l$d.class... processing com/nd/commplatform/d/c/l$e.class... processing com/nd/commplatform/d/c/l$f.class... processing com/nd/commplatform/d/c/l.class... processing com/nd/commplatform/d/c/m$1.class... processing com/nd/commplatform/d/c/m$a$1.class... processing com/nd/commplatform/d/c/m$a.class... processing com/nd/commplatform/d/c/m.class... processing com/nd/commplatform/d/c/n$1.class... processing com/nd/commplatform/d/c/n$2.class... processing com/nd/commplatform/d/c/n$3.class... processing com/nd/commplatform/d/c/n$a.class... processing com/nd/commplatform/d/c/n$b.class... processing com/nd/commplatform/d/c/n$c.class... processing com/nd/commplatform/d/c/n.class... processing com/nd/commplatform/d/c/o$1$1.class... processing com/nd/commplatform/d/c/o$1.class... processing com/nd/commplatform/d/c/o$2.class... processing com/nd/commplatform/d/c/o.class... processing com/nd/commplatform/d/c/p$1.class... processing com/nd/commplatform/d/c/p$2.class... processing com/nd/commplatform/d/c/p$a$1.class... processing com/nd/commplatform/d/c/p$a$2.class... processing com/nd/commplatform/d/c/p$a$3.class... processing com/nd/commplatform/d/c/p$a.class... processing com/nd/commplatform/d/c/p$b.class... processing com/nd/commplatform/d/c/p.class... processing com/nd/commplatform/d/c/q$1.class... processing com/nd/commplatform/d/c/q$2.class... processing com/nd/commplatform/d/c/q$a$1.class... processing com/nd/commplatform/d/c/q$a$2.class... processing com/nd/commplatform/d/c/q$a$3.class... processing com/nd/commplatform/d/c/q$a.class... processing com/nd/commplatform/d/c/q$b.class... processing com/nd/commplatform/d/c/q.class... processing com/nd/commplatform/d/c/r.class... processing com/nd/commplatform/d/c/s.class... processing com/nd/commplatform/d/c/t$1.class... processing com/nd/commplatform/d/c/t$2.class... processing com/nd/commplatform/d/c/t$3.class... processing com/nd/commplatform/d/c/t.class... processing com/nd/commplatform/d/c/u.class... processing com/nd/commplatform/d/c/v$1.cla<message truncated>
You seem to be adding some Android (java) library more than once in your project. The Dex tool is complaining that it's trying to package a class that was already seen before: Java.lang.IllegalArgumentException: already added: Lnd/sdk/u3ddemo/R$attr; What is Lnd.sdk.u3ddemo ? do you know where it comes from? see if you don't include it more than once.