Error:Execution Failed for task ':app:packageRelease'.
> java.io.IOException: Failed to read zip file '/Users/username/Documents/Android Projects/Project Name/app/build/intermediates/transforms/proguard/release/jars/3/1f/main.jar'.

proguard规则文件

-keepclassmembers class * {
    @android.webkit.JavascriptInterface <methods>;
}
 
-keepattributes JavascriptInterface
-keepattributes *Annotation*
 
-dontwarn com.razorpay.**
-keep class com.razorpay.** {*;}
 
-optimizations !method/inlining/*
 
-keepclasseswithmembers class * {
  public void onPayment*(...);
}
 
-keep @interface butterknife.*
 
-keepclasseswithmembers class * {
    @butterknife.* <fields>;
}
 
-keepclasseswithmembers class * {
    @butterknife.* <methods>;
}
 
-keepclasseswithmembers class * {
    @butterknife.On* <methods>;
}
 
-keep class **$$ViewInjector {
    public static void inject(...);
    public static void reset(...);
}
 
-keep class **$$ViewBinder {
    public static void bind(...);
    public static void unbind(...);
}
 
 
 
-keep class com.google.common.** {*;}
 
 
-dontwarn sun.misc.Unsafe
-dontwarn javax.annotation.**

gradle文件

apply plugin: 'com.android.application'
 
android {
    compileSdkVersion 25
    buildToolsVersion "25.0.2"
    defaultConfig {
        applicationId "com.company.projectname"
        minSdkVersion 15
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'),'proguard-rules.pro'
        }
    }
}
 
repositories {
    mavenCentral()
}
 
 
dependencies {
    compile fileTree(dir: 'libs',include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2',{
        exclude group: 'com.android.support',module: 'support-annotations'
    })
    compile 'com.razorpay:checkout:1.2.1'
    compile 'com.android.support:appcompat-v7:25.1.0'
    compile 'com.jakewharton:butterknife:8.5.1'
    compile 'jp.wasabeef:picasso-transformations:2.1.0'
    compile 'com.makeramen:roundedimageview:2.3.0'
    compile 'com.github.greenfrvr:hashtag-view:1.2.1'
    compile 'com.leaking.slideswitch:slideswitch:1.0.0'
    compile 'com.squareup.picasso:picasso:2.5.2'
    compile 'uk.co.chrisjenx:calligraphy:2.2.0'
    compile 'com.android.volley:volley:1.0.0'
    compile 'com.android.support:recyclerview-v7:25.1.0'
    compile 'com.github.devlight:infinitecycleviewpager:1.0.2'
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.5.1'
 
    testCompile 'junit:junit:4.12'
}

项目级别的gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
 
buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.0'
 
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}
 
allprojects {
    repositories {
        jcenter()
        maven {
            url 'https://dl.bintray.com/leaking/maven'
        }
    }
}
 
task clean(type: Delete) {
    delete rootProject.buildDir
}