VSTS - Xamarin Proguard版本和JDK 1.8的问题
VSTS - Xamarin Proguard版本和JDK 1.8的问题
提问于 2017-01-09 10:06:29
我有一个Xamarin Forms项目，我正在尝试与HockeyApps集成使用VSTS的持续集成。我的应用程序是使用Java1.8编译的，它使用ProGuard来缩小android apk文件。但是，当java尝试编译应用程序时，它发现安装的proguard版本与Java 1.8不兼容。错误如下：...无法处理类android/app/ActivityTracker.class不支持的类版本号为52.0最大为51.0，Java为1.7...在我本地的visual studio安装中，我用fixed替换了Xamarin为最新的5.x版本安装的默认proguard版本。
有人知道如何使用VSTS吗？
详细错误：
_CompileToDalvikWithDx:
C:\Program Files\Java\jdk1.8.0_102\\bin\java.exe -jar C:\java\androidsdk\android-sdk\tools\proguard\lib\proguard.jar -include C:\java\androidsdk\android-sdk\tools\proguard\proguard-android.txt -include obj\Release\proguard\proguard_xamarin.cfg -include obj\Release\proguard\proguard_project_references.cfg -include obj\Release\proguard\proguard_project_primary.cfg -include proguard.cfg "-injars 'obj\Release\proguard\__proguard_input__.jar';'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v7.0\mono.android.jar';'obj\Release\__library_projects__\FormsViewGroup\library_project_imports\formsviewgroup.jar';'obj\Release\__library_projects__\HockeySDK.AndroidBindings\library_project_imports\bin\classes.jar';'C:\Users\buildguest\AppData\Local\Xamarin\Xamarin.Android.Support.Animated.Vector.Drawable\23.3.0.0\embedded\classes.jar';'C:\Users\buildguest\AppData\Local\Xamarin\Xamarin.Android.Support.Design\23.3.0.0\embedded\classes.jar';'C:\Users\buildguest\AppData\Local\Xamarin\Xamarin.Android...
java.io.IOException: Can't read [C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v7.0\mono.android.jar] (Can't process class [android/app/ActivityTracker.class] (Unsupported class version number [52.0] (maximum 51.0, Java 1.7)))
at proguard.InputReader.readInput(InputReader.java:230)
at proguard.InputReader.readInput(InputReader.java:200)
at proguard.InputReader.readInput(InputReader.java:178)
at proguard.InputReader.execute(InputReader.java:78)
at proguard.ProGuard.readInput(ProGuard.java:196)
at proguard.ProGuard.execute(ProGuard.java:78)
at proguard.ProGuard.main(ProGuard.java:492)
Caused by: java.io.IOException: Can't process class [android/app/ActivityTracker.class] (Unsupported class version number [52.0] (maximum 51.0, Java 1.7))
at proguard.io.ClassReader.read(ClassReader.java:112)
at proguard.io.FilteredDataEntryReader.read(FilteredDataEntryReader.java:87)
at proguard.io.JarReader.read(JarReader.java:65)
at proguard.io.DirectoryPump.readFiles(DirectoryPump.java:65)
at proguard.io.DirectoryPump.pumpDataEntries(DirectoryPump.java:53)
at proguard.InputReader.readInput(InputReader.java:226)
... 6 more
Caused by: java.lang.UnsupportedOperationException: Unsupported class version number [52.0] (maximum 51.0, Java 1.7)
at proguard.classfile.util.ClassUtil.checkVersionNumbers(ClassUtil.java:140)
at proguard.classfile.io.ProgramClassReader.visitProgramClass(ProgramClassReader.java:88)
at proguard.classfile.ProgramClass.accept(ProgramClass.java:346)
at proguard.io.ClassReader.read(ClassReader.java:91)
... 11 more
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF8
C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2025,3): Error MSB6006: "java.exe" exited with code 1.回答
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原文链接：
https://stackoverflow.com/questions/41540019
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