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注意：通過對項目的一些修改，我可以使用以下代碼重新編譯：https://github.com/imsizon/ant-android-scala。對於在Android上構建Scala有困難的人來說，這是一個好的開始。dex在Android上面爲Scala編譯時失敗
我是建立在階螞蟻使用了Android SDK的修訂12（按照說明在這裏：http://www.assembla.com/wiki/show/scala-ide/Developing_for_Android。）所有進行得很順利，直到我升級到最新的Android SDK（修訂14）現在我得到以下輸出：
Buildfile: /Users/matt/Documents/workspace/ScalaEclipseAndroid/build.xml
-set-mode-check:
-set-debug-files:
-set-debug-mode:
-debug-obfuscation-check:
-setup:
[echo] Gathering info for ScalaEclipseAndroid...
[setup] Android SDK Tools Revision 14
[setup] Project Target: Google APIs
[setup] Vendor: Google Inc.
[setup] Platform Version: 2.1
[setup] API level: 7
[setup] ------------------
[setup] Resolving library dependencies:
[setup] No library dependencies.
[setup] ------------------
[setup] WARNING: Attribute minSdkVersion in AndroidManifest.xml (4) is lower than the project target API level (7)
-build-setup:
[echo] Creating output directories if needed...
-pre-build:
-code-gen:
[echo] ----------
[echo] Handling aidl files...
[aidl] No aidl files to compile.
[echo] ----------
[echo] Handling RenderScript files...
[renderscript] No renderscript files to compile.
[echo] ----------
[echo] Handling Resources...
[aapt] No changed resources. R.java and Manifest.java untouched.
-pre-compile:
-compile:
[scalac] Compiling 0 scala and 1 java source files to /Users/matt/Documents/workspace/ScalaEclipseAndroid/bin/classes
[javac] /Development/android-sdk-mac_x86/tools/ant/build.xml:615: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds
[scalac] Compiling 0 scala and 1 java source files to /Users/matt/Documents/workspace/ScalaEclipseAndroid/bin/classes
-post-compile:
-obfuscate:
-dex:
[dex] Converting compiled files and external libraries into /Users/matt/Documents/workspace/ScalaEclipseAndroid/bin/classes.dex...
[dx] UNEXPECTED TOP-LEVEL ERROR:
[dx] java.lang.AssertionError
[dx] at com.android.dx.dex.code.OutputFinisher.findExpandedOpcodeForInsn(OutputFinisher.java:525)
[dx] at com.android.dx.dex.code.OutputFinisher.calculateReservedCount(OutputFinisher.java:466)
[dx] at com.android.dx.dex.code.OutputFinisher.reserveRegisters(OutputFinisher.java:402)
[dx] at com.android.dx.dex.code.OutputFinisher.finishProcessingAndGetList(OutputFinisher.java:358)
[dx] at com.android.dx.dex.code.DalvCode.finishProcessingIfNecessary(DalvCode.java:108)
[dx] at com.android.dx.dex.code.DalvCode.getInsns(DalvCode.java:185)
[dx] at com.android.dx.dex.file.CodeItem.place0(CodeItem.java:223)
[dx] at com.android.dx.dex.file.OffsettedItem.place(OffsettedItem.java:242)
[dx] at com.android.dx.dex.file.MixedItemSection.placeItems(MixedItemSection.java:312)
[dx] at com.android.dx.dex.file.DexFile.toDex0(DexFile.java:543)
[dx] at com.android.dx.dex.file.DexFile.toDex(DexFile.java:216)
[dx] at com.android.dx.command.dexer.Main.writeDex(Main.java:574)
[dx] at com.android.dx.command.dexer.Main.run(Main.java:218)
[dx] at com.android.dx.command.dexer.Main.main(Main.java:174)
[dx] at com.android.dx.command.Main.main(Main.java:95)
BUILD FAILED
/Development/android-sdk-mac_x86/tools/ant/build.xml:772: The following error occurred while executing this line:
/Development/android-sdk-mac_x86/tools/ant/build.xml:774: The following error occurred while executing this line:
/Development/android-sdk-mac_x86/tools/ant/build.xml:786: The following error occurred while executing this line:
/Development/android-sdk-mac_x86/tools/ant/build.xml:248: null returned: 3
錯誤本身並不能說明很多信息，我不是最好的螞蟻。如果任何人都可以在這個問題上談一談，那將是非常感謝。
這看起來像dx代碼中的斷言，這聽起來可能是dx中的一個錯誤。我會快速瀏覽堆棧跟蹤代碼中的該位置，看看我能否確定交易是什麼 – JesusFreke
它看起來並不像r14的源代碼目前可用 - 而且我對OutputFinisher類似乎不匹配你的堆棧跟蹤，這意味着它在r14中被修改。所以。我沒有多少可以說atm，除此之外，這似乎是dx中的一個錯誤，在r14中引入。 – JesusFreke
如果你真的想嘗試跟蹤它，你可以反編譯dx jar，並看看引發斷言的代碼，看看你能否確定原因。 – JesusFreke