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这是我的日志。在问题发生时，我尝试生成APK签署：尝试生成已签名apk的ProGuard错误
Initializing...
Note: the configuration refers to the unknown class 'com.sourcey.example.SignupActivity'
Note: com.google.android.gms.internal.zzro calls 'Field.getType'
Note: butterknife.internal.ViewInjector calls 'Class.getEnclosingClass'
Warning:com.google.android.gms.common.GooglePlayServicesUtil: can't find referenced method 'void setLatestEventInfo(android.content.Context,java.lang.CharSequence,java.lang.CharSequence,android.app.PendingIntent)' in library class android.app.Notification
Warning:com.google.android.gms.gcm.zza: can't find referenced method 'void setLatestEventInfo(android.content.Context,java.lang.CharSequence,java.lang.CharSequence,android.app.PendingIntent)' in library class android.app.Notification
Note: com.google.android.gms.maps.internal.zzy: can't find dynamically referenced class com.google.android.gms.maps.internal.CreatorImplGmm6
Note: com.google.android.gms.maps.internal.zzy: can't find dynamically referenced class com.google.android.gms.maps.internal.CreatorImpl
Note: org.apache.james.mime4j.storage.DefaultStorageProvider calls '(org.apache.james.mime4j.storage.StorageProvider)Class.forName(variable).newInstance()'
Note: there were 1 references to unknown classes.
You should check your configuration for typos.
(http://proguard.sourceforge.net/manual/troubleshooting.html#unknownclass)
Note: there were 1 classes trying to access generic signatures using reflection.
You should consider keeping the signature attributes
(using '-keepattributes Signature').
(http://proguard.sourceforge.net/manual/troubleshooting.html#attributes)
Note: there were 1 classes trying to access enclosing classes using reflection.
You should consider keeping the inner classes attributes
(using '-keepattributes InnerClasses').
(http://proguard.sourceforge.net/manual/troubleshooting.html#attributes)
Note: there were 2 unresolved dynamic references to classes or interfaces.
You should check if you need to specify additional program jars.
(http://proguard.sourceforge.net/manual/troubleshooting.html#dynamicalclass)
Note: there were 1 class casts of dynamically created class instances.
You might consider explicitly keeping the mentioned classes and/or
their implementations (using '-keep').
(http://proguard.sourceforge.net/manual/troubleshooting.html#dynamicalclasscast)
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)
Warning:Exception while processing task java.io.IOException: Please correct the above warnings first.
:app:transformClassesAndResourcesWithProguardForRelease FAILED
Error:Execution failed for task ':app:transformClassesAndResourcesWithProguardForRelease'.
> java.io.IOException: Please correct the above warnings first.
Information:BUILD FAILED
Information:Total time: 22.714 secs
Information:1 error
Information:4 warnings
Information:See complete output in console
我模块build.grade：
defaultConfig {
applicationId "com.sourcey.example"
minSdkVersion 15
//targetSdkVersion 22
targetSdkVersion 23
versionCode 28
versionName "3.0.2.1"
signingConfig signingConfigs.config
}
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
可能是问题是警告，但我不知道
我的项目build.gradle：
dependencies {
classpath 'com.android.tools.build:gradle:2.1.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
最后，我proguard-rules.pro：
-dontwarn butterknife.internal.**
-keep class **$$ViewInjector { *; }
-keepnames class * { @butterknife.InjectView *;}
-dontwarn butterknife.Views$InjectViewProcessor
-dontwarn com.gc.materialdesign.views.**
-dontwarn com.kosalgeek.**
-dontwarn org.apache.**
-dontwarn android.support.v4.**
感谢您帮助我！ 非常感谢