Proguard 对已删除的类发出警告

Question

我正在使用 proguard 来混淆我在 Android Studio 中的代码。 我已经从我的项目中删除了许多类并且不使用它们，但是 proguard 会警告我这些已删除的类。如果我不使用 proguard，应用程序编译正常。

我尝试了Invalidate Caches/Restart 选项，但没有任何区别。

以下是警告：

Warning: com.mypack.myapp.FaceServiceClient$1: can't find superclass or interface com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$2: can't find superclass or interface com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$3: can't find superclass or interface com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$4: can't find superclass or interface com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$5: can't find superclass or interface com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$6: can't find superclass or interface com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$7: can't find superclass or interface com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.AddFaceToPersonActivity$1: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$1: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.SampleApp
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.SampleApp
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$AddFaceTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$DetectionTask: can't find referenced class com.mypack.myapp.SampleApp
Warning: com.mypack.myapp.AddFaceToPersonActivity$DetectionTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$DetectionTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$DetectionTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$DetectionTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$DetectionTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$DetectionTask: can't find referenced class com.mypack.myapp.SampleApp
Warning: com.mypack.myapp.AddFaceToPersonActivity$DetectionTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$DetectionTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$DetectionTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$DetectionTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$DetectionTask: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter$1: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter
Warning: com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter$1: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter
Warning: com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter$1: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity
Warning: com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter$1: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter
Warning: com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter$1: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter
Warning: com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter$1: can't find referenced class com.mypack.myapp.AddFaceToPersonActivity$FaceGridViewAdapter
Warning: com.mypack.myapp.FaceServiceClient: can't find referenced class com.google.gson.Gson
Warning: com.mypack.myapp.FaceServiceClient: can't find referenced class com.google.gson.Gson
Warning: com.mypack.myapp.FaceServiceClient: can't find referenced method 'java.lang.reflect.Type getType()' in program class com.mypack.myapp.FaceServiceClient$1
Warning: com.mypack.myapp.FaceServiceClient: can't find referenced class com.google.gson.Gson
Warning: com.mypack.myapp.FaceServiceClient: can't find referenced method 'java.lang.reflect.Type getType()' in program class com.mypack.myapp.FaceServiceClient$2
Warning: com.mypack.myapp.FaceServiceClient: can't find referenced method 'java.lang.reflect.Type getType()' in program class com.mypack.myapp.FaceServiceClient$3
Warning: com.mypack.myapp.FaceServiceClient: can't find referenced method 'java.lang.reflect.Type getType()' in program class com.mypack.myapp.FaceServiceClient$4
Warning: com.mypack.myapp.FaceServiceClient: can't find referenced class com.google.gson.Gson
Warning: com.mypack.myapp.FaceServiceClient: can't find referenced method 'java.lang.reflect.Type getType()' in program class com.mypack.myapp.FaceServiceClient$5
Warning: com.mypack.myapp.FaceServiceClient: can't find referenced method 'java.lang.reflect.Type getType()' in program class com.mypack.myapp.FaceServiceClient$6
Warning: com.mypack.myapp.FaceServiceClient: can't find referenced method 'java.lang.reflect.Type getType()' in program class com.mypack.myapp.FaceServiceClient$7
Warning: com.mypack.myapp.FaceServiceClient: can't find referenced class com.google.gson.Gson
Warning: com.mypack.myapp.FaceServiceClient$1: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$1: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$1: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$2: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$2: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$2: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$3: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$3: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$3: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$4: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$4: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$4: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$5: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$5: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$5: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$6: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$6: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$6: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$7: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$7: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.FaceServiceClient$7: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.mypack.myapp.WebServiceRequest: can't find referenced class com.google.gson.Gson
Warning: com.mypack.myapp.WebServiceRequest: can't find referenced class com.google.gson.Gson
Warning: com.mypack.myapp.WebServiceRequest: can't find referenced class com.mypack.myapp.ServiceCallException
Warning: com.mypack.myapp.WebServiceRequest: can't find referenced class com.google.gson.Gson
Warning: com.mypack.myapp.WebServiceRequest: can't find referenced class com.mypack.myapp.ServiceCallException
Warning: com.mypack.myapp.WebServiceRequest: can't find referenced class com.mypack.myapp.ServiceCallException
Warning: com.mypack.myapp.WebServiceRequest: can't find referenced class com.mypack.myapp.ServiceCallException
Warning: com.mypack.myapp.WebServiceRequest: can't find referenced class com.mypack.myapp.ServiceCallException
Warning: com.mypack.myapp.WebServiceRequest: can't find referenced class com.mypack.myapp.ServiceCallException
Warning: com.mypack.myapp.WebServiceRequest: can't find referenced class com.mypack.myapp.ServiceCallException

这是build.gradle中的proguard相关部分：

buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'),
                    'proguard-rules.pro'
        }
    }

这里是proguard-rules.pro 文件：

-verbose

-dontwarn android.support.**

-keep class -verbose

-dontwarn android.support.**

-keep class -verbose

-dontwarn android.support.**

-keep class com.mypack.myapp.R { 
*;
}

#below commands for including the line numbers in traces
-renamesourcefileattribute SourceFile    
-keepattributes SourceFile,LineNumberTable.R { 
*;
}

Answer 1

对于遇到相同问题的任何人，只需删除整个 build 文件夹即可解决问题。