无法在Android Studio中生成签名的APK,’java.io.IOException’

我在 Android studio中生成签名APK时遇到问题.几天前工作正常,我不知道出了什么问题.我收到任何项目的错误,我尝试生成签名的APK：

这是我的buildTypes任务：

buildTypes {
    debug {
        shrinkresources false // This must be first
        minifyEnabled false   // This must be after shrinkresources
        multiDexEnabled true
        proguardFiles getDefaultProguardFile("proguard-android.txt"),"proguard-rules-debug.pro"
    }
    release {
        shrinkresources true
        minifyEnabled true
        useProguard true
        multiDexEnabled true
        proguardFiles getDefaultProguardFile('proguard-android.txt'),"proguard-rules.pro"
    }
}

这是我在proguard文件中编写的代码：

-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-dontpreverify
-verbose
-dump class_files.txt
-printseeds seeds.txt
-printusage unused.txt
-printmapping mapping.txt
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*

-allowaccessmodification
-keepattributes *Annotation*
-renamesourcefileattribute sourceFile
-keepattributes sourceFile,LinenumberTable
-keepattributes Signature
-keepattributes Exceptions
-repackageclasses ''

-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 * extends android.app.
-keep public class com.android.vending.licensing.ILicensingservice

-keep class com.google.common.collect.MapMakerInternalMap$ReferenceEntry
-keep class com.google.common.cache.LocalCache$ReferenceEntry

-dontnote com.android.vending.licensing.ILicensingservice


-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 write@R_801_9363@ce();
    java.lang.object readResolve();
}


-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);
}

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

-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 *;
}

-dontwarn android.support.v7.**
-keep class android.support.v7.** { *; }
-keep interface android.support.v7.* { *; }
-keepattributes *Annotation,Signature
-dontwarn in.mylo.pregnancy.baby.app.**
-keep class in.mylo.pregnancy.baby.app.shapeimageview.**{ *; }

-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }
-keep interface com.actionbarsherlock.** { *; }

-keep class butterknife.*
-keepclasseswithmembernames class * {
 @butterknife.* <methods>; }
-keepclasseswithmembernames class * {
 @butterknife.* <fields>; }


-dontwarn javax.Annotation.**
-dontwarn javax.inject.**
-dontwarn sun.misc.Unsafe

-dontwarn java.lang.Classvalue
-dontwarn com.google.j2objc.Annotations.Weak
-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRErequirement


-keep public class * implements com.bumptech.glide.module.GlideModule
-keep public enum com.bumptech.glide.load.resource.bitmap.ImageHeaderParser$** {
  **[] $VALUES;
  public *;
}

-dontwarn com.firebase.**
-dontnote com.firebase.client.core.GaePlatform

-keep class com.firebase.** { *; }

-keepnames class com.fasterxml.jackson.** { *; }
-keepnames class javax.servlet.** { *; }
-keepnames class org.ietf.jgss.** { *; }

-dontwarn com.cLevertap.android.sdk.**


-keep class okhttp3.** { *; }
-keep interface okhttp3.** { *; }
-dontwarn okhttp3.**
-dontnote okhttp3.**

-keep class sun.misc.Unsafe { *; }
-dontwarn java.nio.file.*
-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRErequirement

-keepclassmembers class * extends android.app.Activity {
   public void *(android.view.View);
}
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}
-keepclassmembers class * implements android.os.Parcelable {
  public static final android.os.Parcelable$Creator CREATOR;
}
-keepclassmembers class **.R$* {
    public static <fields>;
}

-dontwarn android.support.**

-dontwarn com.google.android.gms.**

-dontwarn com.fasterxml.**
-dontwarn okio.**
-dontwarn com.caverock.**
-dontwarn com.github.siyamed.shapeimageview.**


-dontwarn retrofit.**
-keep class retrofit.** { *; }
-dontwarn sun.misc.Unsafe
-dontwarn com.octo.android.robospice.retrofit.RetrofitJackson**
-dontwarn retrofit.appENGIne.UrlFetchClient
-keepattributes Signature
-keepattributes Exceptions
-keepclasseswithmembers class * {
    @retrofit.http.* <methods>;
}
-keep class com.google.gson.** { *; }
-keep class com.google.inject.** { *; }
-keep class org.apache.http.** { *; }
-keep class org.apache.james.mime4j.** { *; }
-keep class javax.inject.** { *; }
-keep class retrofit.** { *; }
-keep class retrofit2.** { *; }
-dontwarn org.apache.http.**
-dontwarn android.net.http.androidhttpclient
-dontwarn retrofit.**
-dontwarn retrofit2.**

-dontwarn sun.misc.**

-keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* {
   long producerIndex;
   long consumerIndex;
}

-keepclassmembers class rx.internal.util.unsafe.baseLinkedQueueProducerNodeRef {
   long producerNode;
   long consumerNode;
}

-keep class in.mylo.pregnancy.baby.app.retrofit.** { *; }

-keep interface org.parceler.Parcel
-keep @org.parceler.Parcel class * { *; }
-keep class **$$Parcelable { *; }

-keepnames public class * extends io.realm.RealmObject
-keep @io.realm.Annotations.RealmModule class *
-keep class io.realm.** { *; }
-dontwarn javax.**
-dontwarn io.realm.**

-keepnames public class * extends io.realm.RealmObject


-dontwarn com.google.android.gms.LOCATIOn.**
-dontwarn com.google.android.gms.gcm.**
-dontwarn com.google.android.gms.iid.**

-keep class com.google.android.gms.gcm.** { *; }
-keep class com.google.android.gms.iid.** { *; }
-keep class com.google.android.gms.LOCATIOn.** { *; }

-keep class com.moe.pushlibrary.activities.** { *; }
-keep class com.moengage.LOCATIOnlibrary.GeofenceIntentservice
-keep class com.moe.pushlibrary.InstallReceiver
-keep class com.moengage.push.MoEPushWorker
-keep class com.moe.pushlibrary.providers.MoEProvider
-keep class com.moengage.receiver.MoEInstancEIDListener
-keep class com.moengage.worker.MoEGCMListenerservice
-keep class com.moe.pushlibrary.models.** { *;}
-keep class com.moengage.core.GeoTask
-keep class com.moengage.LOCATIOn.GeoManager
-keep class com.moengage.inapp.InAppManager
-keep class com.moengage.push.PushManager
-keep class com.moengage.inapp.InAppController


-dontwarn com.moengage.LOCATIOn.GeoManager
-dontwarn com.moengage.core.GeoTask
-dontwarn com.moengage.receiver.*
-dontwarn com.moengage.worker.*
-dontwarn com.moengage.inapp.ViewENGIne

-keep class com.delight.**  { *; }

-dontwarn com.google.android.gms.LOCATIOn.**
-keep class com.moe.** { *; }
-keep class com.moengage.** { *; }
-keep class com.delight.** { *; }

-keep class com.google.android.gms.ads.** { *; }



-keep class com.facebook.** {
   *;
}



-dontwarn android.databinding.**
-keep class android.databinding.** { *; }

任何帮助表示感谢,提前谢谢.

release {
    shrinkresources false
    minifyEnabled false
    useProguard false
    multiDexEnabled true
    proguardFiles getDefaultProguardFile('proguard-android.txt'),"proguard-rules.pro"
}