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带有Gradle和ProGuard的Android Build:“;必须在输入jar之后指定输出jar,否则它将为空";_Android_Gradle_Android Gradle Plugin_Proguard_Android Proguard - Fatal编程技术网

带有Gradle和ProGuard的Android Build:“;必须在输入jar之后指定输出jar,否则它将为空";

带有Gradle和ProGuard的Android Build:“;必须在输入jar之后指定输出jar,否则它将为空";,android,gradle,android-gradle-plugin,proguard,android-proguard,Android,Gradle,Android Gradle Plugin,Proguard,Android Proguard,我正在用Gradle创建一个不同口味的构建。它以前运行得很好,直到现在,直到我想启用Proguard。我为我的发布版本启用了minifyEnabled,现在我遇到了一个异常,说: “原因:org.gradle.internal.UncheckedException:java.io.IOException:输出jar[…/app/build/intermediates/multi-dex/dev/release/componentClasses.jar]必须在输入jar之后指定,否则将为空。” 有

我正在用Gradle创建一个不同口味的构建。它以前运行得很好,直到现在,直到我想启用
Proguard
。我为我的发布版本启用了
minifyEnabled
,现在我遇到了一个异常,说:

原因:org.gradle.internal.UncheckedException:java.io.IOException:输出jar[…/app/build/intermediates/multi-dex/dev/release/componentClasses.jar]必须在输入jar之后指定,否则将为空。

有人知道是什么导致了这个异常吗?我基本上希望在发布应用程序之前启用ProGuard。下面是我的Gradle文件

lintOptions {
    abortOnError false
}

dexOptions{
    incremental true
    javaMaxHeapSize "4g"
}

defaultConfig {
        applicationId "..."
        minSdkVersion 14
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"
        multiDexEnabled true
    }

buildTypes {

    release {
        minifyEnabled true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        signingConfig signingConfigs.release
    }

    debug {
        minifyEnabled false
        shrinkResources false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        signingConfig signingConfigs.debug
    }
}
ProGuard规则文件

# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in /Users/osayilgan/Development/Android/sdk/tools/proguard/proguard-android.txt
# You can edit the include path and order by changing the proguardFiles
# directive in build.gradle.
#
# For more details, see
#   http://developer.android.com/guide/developing/tools/proguard.html

# Add any project specific keep options here:

# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
#   public *;
#}

-keepnames public class * extends io.realm.RealmObject
-keep class io.realm.** { *; }
-dontwarn javax.**
-dontwarn io.realm.**
这是proguard android文件。这是Android SDK中的默认值

# This is a configuration file for ProGuard.
# http://proguard.sourceforge.net/index.html#manual/usage.html

-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-verbose

# Optimization is turned off by default. Dex does not like code run
# through the ProGuard optimize and preverify steps (and performs some
# of these optimizations on its own).
-dontoptimize
-dontpreverify
# Note that if you want to enable optimization, you cannot just
# include optimization flags in your own project configuration file;
# instead you will need to point to the
# "proguard-android-optimize.txt" file instead of this one from your
# project.properties file.

-keepattributes *Annotation*
-keep public class com.google.vending.licensing.ILicensingService
-keep public class com.android.vending.licensing.ILicensingService

# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native
-keepclasseswithmembernames class * {
    native <methods>;
}

# keep setters in Views so that animations can still work.
# see http://proguard.sourceforge.net/manual/examples.html#beans
-keepclassmembers public class * extends android.view.View {
   void set*(***);
   *** get*();
}

# We want to keep methods in Activity that could be used in the XML attribute onClick
-keepclassmembers class * extends android.app.Activity {
   public void *(android.view.View);
}

# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}

-keep class * implements android.os.Parcelable {
  public static final android.os.Parcelable$Creator *;
}

-keepclassmembers class **.R$* {
    public static <fields>;
}

# The support library contains references to newer platform versions.
# Don't warn about those in case this app is linking against an older
# platform version.  We know about them, and they are safe.
-dontwarn android.support.**
#这是ProGuard的配置文件。
# http://proguard.sourceforge.net/index.html#manual/usage.html
-dontusemixedcaseclassnames
-DontskipnonPublicLibraryClass
-冗长的
#默认情况下,优化处于关闭状态。Dex不喜欢代码运行
#通过ProGuard优化和预验证步骤(并执行一些
#这些优化的一部分)。
-dontoptimize
-不要翻转
#请注意,如果要启用优化,则不能
#在您自己的项目配置文件中包含优化标志;
#相反,您需要指向
#“proguard android optimize.txt”文件,而不是您的
#project.properties文件。
-keepattributes*注释*
-保持公共类com.google.vending.licensing.ILicensingService
-保持公共类com.android.vending.licensing.ILicensingService
#有关本机方法,请参见http://proguard.sourceforge.net/manual/examples.html#native
-KeepClassSwithMemberNames类*{
本地人;
}
#在视图中保留setter,以便动画仍然可以工作。
#看http://proguard.sourceforge.net/manual/examples.html#beans
-keepclassmembers公共类*扩展了android.view.view{
无效集*(***);
***得到*();
}
#我们希望在活动中保留可以在XML属性onClick中使用的方法
-keepclassmembers类*扩展了android.app.Activity{
public void*(android.view.view);
}
#有关枚举类,请参见http://proguard.sourceforge.net/manual/examples.html#enumerations
-keepclassmembers枚举*{
公共静态**[]值();
公共静态**valueOf(java.lang.String);
}
-keep class*实现android.os.Parcelable{
公开静态最终android.os.Parcelable$Creator*;
}
-keepclassmembers类**.R$*{
公共静态;
}
#支持库包含对较新平台版本的引用。
#如果此应用程序链接的是较旧的应用程序,请不要警告这些问题
#平台版本。我们知道他们,他们是安全的。
-dontwarn android.support**

我花了很长时间才弄明白,但正如我所猜测的,这一切都是关于Proguard配置的

我开始翻阅控制台中的警告,意识到Proguard找不到一些引用。因此,将它们作为
-dontwarn
添加到proguard配置文件解决了这个问题

在我的情况下,我不得不忽略下面的包

-dontwarn java.lang.invoke**
-dontwarn org.apache.lang.**
-dontwarn org.apache.commons.**
-dontwarn com.nhaarman.**
-dontwarn se.emilsjolander.**

你能提供你的proguard文件吗?@VicVu我用proguard文件更新了我的问题。嗨@osayilgan我面临同样的问题。它对我不起作用,我把它放在我的progurad rules pro文件中。我应该把它放在哪里else@shivpaljodha这些proguard规则只是一个例子。您需要找出哪些依赖关系会给您带来麻烦。请注意LogCat中的警告和错误,以便您能够找到答案。