Android – unable to generate signed APK – taskexecutionexception failed

I'm in the final step of making my application. When I try to build and generate a signed APK, I get this error log from Proguard

This is my plan

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

Building gradle

apply plugin: 'com.android.application'

android {

    packagingOptions {
        exclude 'Meta-INF/DEPENDENCIES.txt'
        exclude 'Meta-INF/LICENSE.txt'
        exclude 'Meta-INF/NOTICE.txt'
        exclude 'Meta-INF/NOTICE'
        exclude 'Meta-INF/LICENSE'
        exclude 'Meta-INF/DEPENDENCIES'
        exclude 'Meta-INF/notice.txt'
        exclude 'Meta-INF/license.txt'
        exclude 'Meta-INF/dependencies.txt'
        exclude 'Meta-INF/LGPL2.1'
    }

    compileSdkVersion 27
    buildToolsVersion '27.0.3'

    defaultConfig {
        applicationId "com.app"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
    }

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

}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support:recyclerview-v7:27.1.1'
    implementation 'com.android.support:cardview-v7:27.1.1'
    implementation 'com.android.support:design:27.1.1'
    implementation 'com.android.support:support-annotations:27.1.1'
    implementation 'com.android.support:multidex:1.0.3'
    implementation 'com.android.support:support-compat:27.1.1'
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'

    implementation 'com.google.firebase:firebase-storage:15.0.2'
    implementation 'com.google.firebase:firebase-database:15.0.1'
    implementation 'com.google.firebase:firebase-auth:15.1.0'
    implementation 'com.google.firebase:firebase-crash:15.0.2'
    implementation 'com.google.firebase:firebase-messaging:15.0.2'

    implementation 'com.github.rey5137:material:1.2.4'
    implementation 'com.firebaseui:firebase-ui-database:3.3.1'
    implementation 'com.theartofdev.edmodo:android-image-cropper:2.7.+'

    implementation 'com.github.bumptech.glide:glide:4.3.1'
    annotationProcessor 'com.github.bumptech.glide:compiler:4.3.1'

    implementation 'de.hdodenhof:circleimageview:2.2.0'
    implementation 'joda-time:joda-time:2.9.9'
    implementation 'com.google.code.findbugs:jsr305:2.0.1'
    implementation "com.andkulikov:transitionseverywhere:1.7.7"

    testImplementation 'junit:junit:4.12'
}

apply plugin: 'com.google.gms.google-services'

resolvent:

Just add - ignorewarnings to Proguard. Please note that this method is not recommended. You should fix the warnings, but it will help if you need to get APK quickly