Android Studio ProGuard IOException

我试图混淆代码，但出现了如下错误

错误：任务“：lavasa android库：proguardRelease”的执行失败。 java.io.IOException:无法读取[E:\kumar backup\Home\Untitled Folder\StudioWorkSpace\Lavasa\Lavasa android lib\bin\classes]（无此类文件或目录）

建造。格拉德尔：

    apply plugin: 'com.android.application'

    android {
        compileSdkVersion 23
        buildToolsVersion "23.0.2"

        defaultConfig {
            applicationId "com.rba.example"
            minSdkVersion 19
            targetSdkVersion 23
            versionCode 1
            versionName "1.0"
        }
        buildTypes {
            release {
                minifyEnabled true
                proguardFiles  'proguard-rules.pro'
            }
        }
    }

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile project(':lavasa-android-lib')
}

proguard-rules.pro：

-injars      bin/classes
-injars      libs
-injars      com.android.support:appcompat-v7:23.1.1
-injars      com.rba.ui:materialdesignlibrary:0.1.5
-injars      com.android.support:recyclerview-v7:23.1.1
-libraryjars E:\kumar-backup\Home\Untitled Folder\StudioWorkSpace\Lavasa\lavasa-android-lib\libs\js.jar
-libraryjars /usr/local/java/android-sdk/platforms/android-22/android.jar

-dontpreverify
-repackageclasses ''
-allowaccessmodification
-optimizations !code/simplification/arithmetic
-keepattributes *Annotation*

-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.view.View {
    public <init>(android.content.Context);
    public <init>(android.content.Context, android.util.AttributeSet);
    public <init>(android.content.Context, android.util.AttributeSet, int);
    public void set*(...);
}

-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.content.Context {
   public void *(android.view.View);
   public void *(android.view.MenuItem);
}

-keepclassmembers class * implements android.os.Parcelable {
    static ** CREATOR;
}

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

-keepclassmembers class * {
    @android.webkit.JavascriptInterface <methods>;
}

-injars箱/类
-injars libs
-injars com.android.support:appcompat-v7:23.1.1
-injars com.rba.ui:materialdesignlibrary:0.1.5
-android.support:recyclerview-v7:23.1.1
-libraryjars E:\kumar backup\Home\Untitled Folder\StudioWorkSpace\Lavasa\Lavasa android lib\libs\js.jar
-libraryjars/usr/local/java/android sdk/platforms/android-22/android.jar
-不要翻转
-重新打包类“”
-允许访问修改
-优化！代码/简化/算术
-keepattributes*注释*
-keep public class*扩展android.app.Activity
-keep public class*扩展android.app.Application
-keep public class*扩展了android.app.Service
-keep public class*扩展了android.content.BroadcastReceiver
-keep public class*扩展了android.content.ContentProvider
-keep public class*扩展了android.view.view{
public（android.content.Context）；
public（android.content.Context、android.util.AttributeSet）；
public（android.content.Context，android.util.AttributeSet，int）；
公共无效集*（…）；
}
-keepclassswithmembers类*{
public（android.content.Context、android.util.AttributeSet）；
}
-keepclassswithmembers类*{
public（android.content.Context，android.util.AttributeSet，int）；
}
-keepclassmembers类*扩展了android.content.Context{
public void*（android.view.view）；
public void*（android.view.MenuItem）；
}
-keepclassmembers类*实现android.os.Parcelable{
静态**创建者；
}
-keepclassmembers类**.R$*{
公共静态；
}
-keepclassmembers类*{
@android.webkit.JavascriptInterface；
}

注意：我遵循了下面的链接，尽管出现了错误

---

是否存在bin/classes目录？对于子模块也？从规则文件中删除-injars和-libjars，因为android gradle系统会自动为您设置。我没有为您设置ramanadeep。。。你能简单解释一下吗？如果我删除了-injar和libjar，它会给出警告，比如需要添加缺少的jar。。