您好我试图通过启用proguard来减少我的应用程序大小。 我使用Visual Studio 2015，以及它的Xamarin.Android应用程序。
我一直收到错误：
Java.exe exited with code 1. File: Xamarin.Android.Common.targets.
网上所有帖子都参考Gradle，但不确定gradle的含义，我认为它是某种插件，但我没有使用它......
关于修复的任何想法？它以前在同一个项目中工作，所以很不寻常。
>Using "Proguard" task from assembly "C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Build.Tasks.dll".
1>Task "Proguard" (TaskId:220)
1> Task Parameter:ProguardJarPath=C:\SDKS\tools\proguard\lib\proguard.jar (TaskId:220)
1> Task Parameter:JavaToolPath=C:\PROGRA~1\Java\JDK18~1.0_6\\bin (TaskId:220)
1> Task Parameter:JavaPlatformJarPath=C:\SDKS\platforms\android-19\android.jar (TaskId:220)
1> Task Parameter:MonoPlatformJarPath=C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v4.4\mono.android.jar (TaskId:220)
1> Task Parameter:ClassesOutputDirectory=obj\Release\android\bin\classes (TaskId:220)
1> Task Parameter:ProguardCommonXamarinConfiguration=obj\Release\proguard\proguard_xamarin.cfg (TaskId:220)
1> Task Parameter:ProguardGeneratedReferenceConfiguration=obj\Release\proguard\proguard_project_references.cfg (TaskId:220)
1> Task Parameter:ProguardGeneratedApplicationConfiguration=obj\Release\proguard\proguard_project_primary.cfg (TaskId:220)
1> Task Parameter:ProguardConfigurationFiles=
1> {sdk.dir}tools\proguard\proguard-android.txt;
1> {intermediate.common.xamarin};
1> {intermediate.references};
1> {intermediate.application};
1> ;
1> (TaskId:220)
1> Task Parameter:
1> LibraryProjectJars=
1> obj\Release\__library_projects__\Square.OkHttp\library_project_imports\okhttp-2.5.0.jar
1> obj\Release\__library_projects__\Square.OkIO\library_project_imports\okio-1.6.0.jar (TaskId:220)
1> Task Parameter:
1> AdditionalJavaLibraryReferences=
1> C:\Users\srj\AppData\Local\Xamarin\Android.Support.v4\23.1.1.0\embedded\classes.jar
1> C:\Users\srj\AppData\Local\Xamarin\Android.Support.v4\23.1.1.0\embedded\libs\internal_impl-23.1.1.jar (TaskId:220)
1> Task Parameter:ProguardJarInput=obj\Release\proguard\__proguard_input__.jar (TaskId:220)
1> Task Parameter:ProguardJarOutput=obj\Release\proguard\__proguard_output__.jar (TaskId:220)
1> Task Parameter:DumpOutput=obj\Release\proguard\dump.txt (TaskId:220)
1> Task Parameter:PrintSeedsOutput=obj\Release\proguard\seeds.txt (TaskId:220)
1> Task Parameter:PrintUsageOutput=obj\Release\proguard\usage.txt (TaskId:220)
1> Task Parameter:PrintMappingOutput=obj\Release\proguard\mapping.txt (TaskId:220)
1> Proguard (TaskId:220)
1> JavaPlatformJarPath: C:\SDKS\platforms\android-19\android.jar (TaskId:220)
1> MonoPlatformJarPath: C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v4.4\mono.android.jar (TaskId:220)
1> ClassesOutputDirectory: obj\Release\android\bin\classes (TaskId:220)
1> ProguardGeneratedApplicationConfiguration: obj\Release\proguard\proguard_project_primary.cfg (TaskId:220)
1> ProguardJarInput: obj\Release\proguard\__proguard_input__.jar (TaskId:220)
1> ProguardJarOutput: obj\Release\proguard\__proguard_output__.jar (TaskId:220)
1> ProguardConfigurationFiles: (TaskId:220)
1>
1> {sdk.dir}tools\proguard\proguard-android.txt;
1> {intermediate.common.xamarin};
1> {intermediate.references};
1> {intermediate.application};
1> ;
1> (TaskId:220)
1> JavaSourceFiles: (TaskId:220)
1> JavaLibraries: (TaskId:220)
1> ExternalJavaLibraries: (TaskId:220)
1> DoNotPackageJavaLibraries: (TaskId:220)
1> LibraryProjectJars: (TaskId:220)
1> obj\Release\__library_projects__\Square.OkHttp\library_project_imports\okhttp-2.5.0.jar (TaskId:220)
1> obj\Release\__library_projects__\Square.OkIO\library_project_imports\okio-1.6.0.jar (TaskId:220)
1> UseProguard: False (TaskId:220)
1> EnableLogging: False (TaskId:220)
1> DumpOutput: obj\Release\proguard\dump.txt (TaskId:220)
1> PrintSeedsOutput: obj\Release\proguard\seeds.txt (TaskId:220)
1> PrintMappingOutput: obj\Release\proguard\mapping.txt (TaskId:220)
1> Environment Variables passed to tool: (TaskId:220)
1> java_tool_options= -Dfile.encoding=UTF8 (TaskId:220)
1> proguard_home=C:\SDKS\tools\proguard (TaskId:220)
1> C:\PROGRA~1\Java\JDK18~1.0_6\\bin\java.exe -jar C:\SDKS\tools\proguard\lib\proguard.jar -include C:\SDKS\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 "-injars 'obj\Release\proguard\__proguard_input__.jar';'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v4.4\mono.android.jar';'obj\Release\__library_projects__\Square.OkHttp\library_project_imports\okhttp-2.5.0.jar';'obj\Release\__library_projects__\Square.OkIO\library_project_imports\okio-1.6.0.jar';'C:\Users\srj\AppData\Local\Xamarin\Android.Support.v4\23.1.1.0\embedded\classes.jar';'C:\Users\srj\AppData\Local\Xamarin\Android.Support.v4\23.1.1.0\embedded\libs\internal_impl-23.1.1.jar'" "-libraryjars 'C:\SDKS\platforms\android-19\android.jar'" -outjars "obj\Release\proguard\__proguard_output__.jar" (TaskId:220)
1> ProGuard, version 4.7 (TaskId:220)
1> Reading input... (TaskId:220)
1> Reading program jar [C:\Projects\cpxm\Product\Production\ColorPoint.Xamarin.Android\obj\Release\proguard\__proguard_input__.jar] (TaskId:220)
1> Reading program jar [C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v4.4\mono.android.jar] (TaskId:220)
1> Reading program jar [C:\Projects\cpxm\Product\Production\ColorPoint.Xamarin.Android\obj\Release\__library_projects__\Square.OkHttp\library_project_imports\okhttp-2.5.0.jar] (TaskId:220)
1> Reading program jar [C:\Projects\cpxm\Product\Production\ColorPoint.Xamarin.Android\obj\Release\__library_projects__\Square.OkIO\library_project_imports\okio-1.6.0.jar] (TaskId:220)
1> Reading program jar [C:\Users\srj\AppData\Local\Xamarin\Android.Support.v4\23.1.1.0\embedded\classes.jar] (TaskId:220)
1> Reading program jar [C:\Users\srj\AppData\Local\Xamarin\Android.Support.v4\23.1.1.0\embedded\libs\internal_impl-23.1.1.jar] (TaskId:220)
1> Reading library jar [C:\SDKS\platforms\android-19\android.jar] (TaskId:220)
1> Initializing... (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'android.support.v4.app.ActivityCompat$OnRequestPermissionsResultCallback' (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'android.support.v4.app.FragmentManager$BackStackEntry' (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'android.support.v4.app.FragmentManager$OnBackStackChangedListener' (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'mono.android.support.v4.app.FragmentManager_OnBackStackChangedListenerImplementor' (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'android.support.v4.app.LoaderManager$LoaderCallbacks' (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'android.support.v4.app.SharedElementCallback' (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'android.support.v4.content.Loader$OnLoadCanceledListener' (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'android.support.v4.content.Loader$OnLoadCompleteListener' (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'android.support.v4.media.session.MediaControllerCompat$Callback' (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'android.support.v4.media.session.MediaSessionCompat$Callback' (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'android.support.v4.media.session.MediaSessionCompat$OnActiveChangeListener' (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'mono.android.support.v4.media.session.MediaSessionCompat_OnActiveChangeListenerImplementor' (TaskId:220)
1> Note: the configuration doesn't specify which class members to keep for class 'android.support.v4.media.VolumeProviderCompat' (TaskId:220)
1>PROGUARD : warning : okio.DeflaterSink: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
1>PROGUARD : warning : okio.Okio: can't find referenced class java.nio.file.Files
1>PROGUARD : warning : okio.Okio: can't find referenced class java.nio.file.Files
1>PROGUARD : warning : okio.Okio: can't find referenced class java.nio.file.Files
1>PROGUARD : warning : okio.Okio: can't find referenced class java.nio.file.Path
1>PROGUARD : warning : okio.Okio: can't find referenced class java.nio.file.OpenOption
1>PROGUARD : warning : okio.Okio: can't find referenced class java.nio.file.Path
1>PROGUARD : warning : okio.Okio: can't find referenced class java.nio.file.OpenOption
1>PROGUARD : warning : okio.Okio: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
1>PROGUARD : warning : okio.Okio: can't find referenced class java.nio.file.Path
1>PROGUARD : warning : okio.Okio: can't find referenced class java.nio.file.OpenOption
1>PROGUARD : warning : okio.Okio: can't find referenced class java.nio.file.Path
1>PROGUARD : warning : okio.Okio: can't find referenced class java.nio.file.OpenOption
1>PROGUARD : warning : okio.Okio: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
1> Note: android.support.v4.text.ICUCompatApi23: can't find dynamically referenced class libcore.icu.ICU (TaskId:220)
1> Note: android.support.v4.text.ICUCompatIcs: can't find dynamically referenced class libcore.icu.ICU (TaskId:220)
1> Note: com.squareup.okhttp.internal.Platform: can't find dynamically referenced class com.android.org.conscrypt.OpenSSLSocketImpl (TaskId:220)
1> Note: com.squareup.okhttp.internal.Platform: can't find dynamically referenced class org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl (TaskId:220)
1> Note: com.squareup.okhttp.internal.Platform: can't find dynamically referenced class android.net.Network (TaskId:220)
1> Note: android.support.v4.app.NotificationCompatJellybean accesses a declared field 'icon' dynamically (TaskId:220)
1> Maybe this is program field 'android.support.v4.app.NotificationCompat$Action { int icon; }' (TaskId:220)
1> Maybe this is program field 'colorpoint.xamarin.xandroid.R$drawable { int icon; }' (TaskId:220)
1> Maybe this is library field 'android.R$attr { int icon; }' (TaskId:220)
1> Maybe this is library field 'android.R$id { int icon; }' (TaskId:220)
1> Maybe this is library field 'android.app.LauncherActivity$ListItem { android.graphics.drawable.Drawable icon; }' (TaskId:220)
1> Maybe this is library field 'android.app.Notification { int icon; }' (TaskId:220)
1> Maybe this is library field 'android.app.Notification$Action { int icon; }' (TaskId:220)
1> Maybe this is library field 'android.appwidget.AppWidgetProviderInfo { int icon; }' (TaskId:220)
1> Maybe this is library field 'android.content.pm.PackageItemInfo { int icon; }' (TaskId:220)
1> Maybe this is library field 'android.content.pm.ResolveInfo { int icon; }' (TaskId:220)
1> Maybe this is library field 'android.inputmethodservice.Keyboard$Key { android.graphics.drawable.Drawable icon; }' (TaskId:220)
1> Maybe this is library field 'android.speech.tts.TextToSpeech$EngineInfo { int icon; }' (TaskId:220)
1> Note: android.support.v4.app.NotificationCompatJellybean accesses a declared field 'title' dynamically (TaskId:220)
1> Maybe this is program field 'android.support.v4.app.NotificationCompat$Action { java.lang.CharSequence title; }' (TaskId:220)
1> Maybe this is library field 'android.R$attr { int title; }' (TaskId:220)
1> Maybe this is library field 'android.R$id { int title; }' (TaskId:220)
1> Maybe this is library field 'android.app.Notification$Action { java.lang.CharSequence title; }' (TaskId:220)
1> Maybe this is library field 'android.preference.PreferenceActivity$Header { java.lang.CharSequence title; }' (TaskId:220)
1> Note: android.support.v4.app.NotificationCompatJellybean accesses a declared field 'actionIntent' dynamically (TaskId:220)
1> Maybe this is program field 'android.support.v4.app.NotificationCompat$Action { android.app.PendingIntent actionIntent; }' (TaskId:220)
1> Maybe this is library field 'android.app.Notification$Action { android.app.PendingIntent actionIntent; }' (TaskId:220)
1> Note: the configuration refers to the unknown class 'com.google.vending.licensing.ILicensingService' (TaskId:220)
1> Note: the configuration refers to the unknown class 'com.android.vending.licensing.ILicensingService' (TaskId:220)
1> Note: the configuration keeps the entry point 'android.support.v4.media.session.MediaSessionCompat { MediaSessionCompat(android.content.Context,android.support.v4.media.session.MediaSessionCompat$MediaSessionImpl); }', but not the descriptor class 'android.support.v4.media.session.MediaSessionCompat$MediaSessionImpl' (TaskId:220)
1> Note: the configuration keeps the entry point 'android.support.v4.media.session.MediaSessionCompat$QueueItem { MediaSessionCompat$QueueItem(android.os.Parcel,android.support.v4.media.session.MediaSessionCompat$1); }', but not the descriptor class 'android.support.v4.media.session.MediaSessionCompat$1' (TaskId:220)
1> Note: there were 2 references to unknown classes. (TaskId:220)
1> You should check your configuration for typos. (TaskId:220)
1> Note: there were 2 unkept descriptor classes in kept class members. (TaskId:220)
1> You should consider explicitly keeping the mentioned classes (TaskId:220)
1> (using '-keep'). (TaskId:220)
1> Note: there were 5 unresolved dynamic references to classes or interfaces. (TaskId:220)
1> You should check if you need to specify additional program jars. (TaskId:220)
1> Note: there were 3 accesses to class members by means of introspection. (TaskId:220)
1> You should consider explicitly keeping the mentioned class members (TaskId:220)
1> (using '-keep' or '-keepclassmembers'). (TaskId:220)
1>PROGUARD : warning : there were 14 unresolved references to classes or interfaces.
1> You may need to specify additional library jars (using '-libraryjars'). (TaskId:220)
1> java.io.IOException: Please correct the above warnings first. (TaskId:220)
1> at proguard.Initializer.execute(Initializer.java:321) (TaskId:220)
1> at proguard.ProGuard.initialize(ProGuard.java:211) (TaskId:220)
1> at proguard.ProGuard.execute(ProGuard.java:86) (TaskId:220)
1> at proguard.ProGuard.main(ProGuard.java:492) (TaskId:220)
1> Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF8 (TaskId:220)
1>C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(1845,3): error MSB6006: "java.exe" exited with code 1.
1>Done executing task "Proguard" -- FAILED. (TaskId:220)
1>Done building target "_CompileToDalvik" in project "ColorPoint.Xamarin.XAndroid.csproj" -- FAILED.: (TargetId:139)
1>