在Android中出现了“transformClassesAndResourcesWithProguardForRelease”错误

12

你好,我正在努力为我的项目创建发布版本。我已经尝试了许多关于Proguard的方法,通过SO或Google的帮助,但我仍然无法创建发布版本。

有人能帮我解决这个问题吗?我总是遇到这个问题:

Error:Execution failed for task ':app:transformClassesAndResourcesWithProguardForRelease'.
> java.io.IOException: Please correct the above warnings first.

以下是完整的详细错误信息:http://justpaste.it/perror。对不起,我不得不将其作为链接放置,因为它太大了。

以下是依赖关系:

//compile fileTree(dir: 'libs', include: ['*.jar'])
 testCompile 'junit:junit:4.12'
 compile 'com.android.support:appcompat-v7:23.1.1'
 compile 'com.android.support:design:23.1.1'
 compile 'com.rengwuxian.materialedittext:library:2.1.4'
 compile 'com.squareup.picasso:picasso:2.5.2'
 compile 'com.nostra13.universalimageloader:universal-image-loader:1.9.4'
 compile 'org.apache.httpcomponents:httpcore:4.4.1'
 compile 'com.squareup.retrofit:retrofit:1.9.0'
 compile 'com.loopj.android:android-async-http:1.4.8'
 compile 'com.android.support:cardview-v7:23.1.1'
 compile 'com.android.support:recyclerview-v7:23.1.1'
 compile project(':pageIndicator')
 compile 'com.github.neopixl:PixlUI:v1.0.6'
 compile 'com.github.bumptech.glide:glide:3.6.1'

我的proguard文件:

# You can edit the include path and order by changing the ProGuard
# include property in project.properties.
#
# 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:
-dontwarn com.google.code.**
-dontwarn  org.apache.**
-dontwarn  jp.wasabeef.recyclerview.**
-dontwarn  com.nostra13.universalimageloader.**
-dontwarn  org.acra.** 

#wasabeef recyclerview
-keep class jp.wasabeef.recyclerview.** { *; }
-keepattributes Signature
#HTTP Legacy
-keep class org.apache.** { *; }
-keepattributes Signature
#Universal Image Loader
-keep class com.nostra13.universalimageloader.** { *; }
-keepattributes Signature
#Acra
-keep class org.acra.**  { *; }
-keepattributes Signature
#Support libraries
-keep class com.android.** { *; }
-keepattributes Signature

# Keep the annotations
-keepattributes *Annotation*
-allowaccessmodification
-keepattributes *Annotation*
-renamesourcefileattribute SourceFile
-keepattributes SourceFile,LineNumberTable
-repackageclasses ''

-dontnote com.android.vending.licensing.ILicensingService

# Explicitly preserve all serialization members. The Serializable interface
# is only a marker interface, so it wouldn't save them.
-keepclassmembers class * implements java.io.Serializable {
    static final long serialVersionUID;
    private static final java.io.ObjectStreamField[] serialPersistentFields;
    private void writeObject(java.io.ObjectOutputStream);
    private void readObject(java.io.ObjectInputStream);
    java.lang.Object writeReplace();
    java.lang.Object readResolve();
}

# Preserve all native method names and the names of their classes.
-keepclasseswithmembernames class * {
    native <methods>;
}

-keepclasseswithmembernames class * {
    public <init>(android.content.Context, android.util.AttributeSet);
}

-keepclasseswithmembernames class * {
    public <init>(android.content.Context, android.util.AttributeSet, int);
}

# Preserve static fields of inner classes of R classes that might be accessed
# through introspection.
-keepclassmembers class **.R$* {
  public static <fields>;
}

# Preserve the special static methods that are required in all enumeration classes.
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}

-keep public class * {
    public protected *;
}

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


-keep class com.splunk.** { *; }
-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
-keep public class * extends android.app.backup.BackupAgentHelper
-keep public class * extends android.preference.Preference
-keep public class com.android.vending.licensing.ILicensingService
-keepclasseswithmembernames class * {
    native <methods>;
}
-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * extends android.app.Activity {
   public void *(android.view.View);
}
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
  public static final android.os.Parcelable$Creator *;
}

-keep class com.splunk.** { *; }
-dontwarn rx.**

-dontwarn okio.**

-dontwarn com.squareup.okhttp.**
-keep class com.squareup.okhttp.** { *; }
-keep interface com.squareup.okhttp.** { *; }

-keep class org.apache.http.** { *; }
-dontwarn org.apache.http.**
-dontwarn android.net.**

-dontwarn retrofit.**
-dontwarn retrofit.appengine.UrlFetchClient
-keep class retrofit.** { *; }
-keepclasseswithmembers class * {
    @retrofit.http.* <methods>;
}

-keepattributes Signature
-keepattributes *Annotation*

-keep class sun.misc.Unsafe { *; }
#your package path where your gson models are stored
-keep class com.ylg.others.** { *; }

似乎是Gradle文件的问题。 - user4302606
2
这种问题通常发生在SDK版本、gradle版本和构建工具版本不兼容的情况下:https://dev59.com/-FsX5IYBdhLWcg3wY-rX我也遇到了同样的问题,但一直没有解决。我通过将“minifyEnabled”设置为“false”来暂时解决了它。 - Vedavyas Bhat
@VedavyasBhat:如果我们这样做,它不会混淆我的代码,对吧? - Sanjana Nair
@SanjanaNair,你找到这个问题的解决方案了吗? - Pandiyan Muthu
@MuthuPandiyan:不,你有机会拿到它了吗? - Sanjana Nair
@SanjanaNair 请查看我的回答。 - user8690908
4个回答

11
在您的 ProGuard 文件中添加以下内容:

-ignorewarnings

例如:

# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in D:\Softwares\Developing\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 *;
#}

# Uncomment this to preserve the line number information for
# debugging stack traces.
#-keepattributes SourceFile,LineNumberTable

# If you keep the line number information, uncomment this to
# hide the original source file name.
#-renamesourcefileattribute SourceFile


-ignorewarnings

您不需要指定任何包名,例如com.viewpagerindicator.**,这将抑制所有警告,Gradle Console 只会显示类似于:

......
Warning: there were 4 unresolved references to classes or interfaces.
         You may need to add missing library jars or update their versions.
         If your code works fine without the missing classes, you can suppress
         the warnings with '-dontwarn' options.
         (http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)
Warning: there were 2 unresolved references to library class members.
         You probably need to update the library versions.
         (http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedlibraryclassmember)

Note: you're ignoring all warnings! 
Ignoring unused library classes...
  Original number of library classes: 4237
  Final number of library classes:    1317
Printing kept classes, fields, and methods...
Shrinking...
......

6

在您的ProGuard文件中添加:

-dontwarn com.viewpagerindicator.**

如果您打开提供的链接并搜索“警告”,则可以看到消息大约在三分之二处:

Warning:com.viewpagerindicator.LinePageIndicator: can't find referenced method 'float ceil(float)' in library class android.util.FloatMath

如果有任何警告,ProGuard将停止并要求您先修复它们,或者如果您的代码有效,则可以选择使用dontwarn忽略它们。

更新05/01/2017

如果警告说在程序类中,则您编译的类文件可能不一致,请尝试删除它们并重新构建项目。

如果警告说在库类中,则您编译的类文件与库不一致。请重新编译类文件或升级库以保持一致

您可以在这里阅读更多信息。


1
如果应用程序试图使用找不到的方法,那么它不会崩溃吗? - OneCricketeer
1
我正在拼命地尝试弄清楚为什么ProGuard会捕捉到这些缺失的引用,而常规构建却没有,并且它们有多大的威胁。 - David Lord

0

对我有帮助的是将所有依赖项更新到最新版本。


0
在我的情况下,由于项目由多个模块组成,因此proguard文件被完全忽略了。根据this answer,解决方案是在导致问题的模块的gradle中设置以下内容:
defaultConfig {
    consumerProguardFiles 'proguard-rules.txt'
}

看起来这将模块的混淆文件包含在应用程序的混淆文件中。现在我的dontwarn语句得到考虑。


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