getting DuplicateFileException while building Apk - build.gradle

Question

I am getting a DuplicateFileException while building Apk. I used the Applogic source code from GitHub to develop a chat app and while building the gradle I got this exception not able to build the apk. I am using Android Studio 3.0 Gradle version 3.3 and Android Plugin version 2.3.3 Build tool version 26.0.2 sdk version API26
apply plugin: 'com.android.application'
apply plugin: 'io.fabric'
buildscript {
repositories {
maven { url 'https://maven.fabric.io/public' }
}
dependencies {
classpath 'io.fabric.tools:gradle:1.+'
}
}
repositories {
maven { url 'https://maven.fabric.io/public' }
}
android {
compileSdkVersion 26
buildToolsVersion '26.0.2'
defaultConfig {
applicationId "com.mobicomkit.sample"
minSdkVersion 14
targetSdkVersion 26
versionCode 1
versionName "1.0"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
lintOptions {
abortOnError false
}
packagingOptions {
exclude 'META-INF/DEPENDENCIES'
exclude 'META-INF/DEPENDENCIES'
exclude 'META-INF/NOTICE'
exclude 'META-INF/LICENSE'
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/NOTICE.txt'
exclude 'META-INF/ECLIPSE_.SF'
exclude 'META-INF/ECLIPSE_.RSA'
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile project(':mobicomkitui') //Note: use this for customization
compile 'com.applozic.communication.uiwidget:mobicomkitui:5.2'
compile 'com.android.support:support-v4:26.1.0'
compile 'com.android.support:appcompat-v7:26.1.0'
compile 'com.facebook.android:facebook-android-sdk:4.1.0'
compile 'com.android.support:design:26.1.0'
compile 'com.android.support:multidex:1.0.1'
compile 'com.android.support:cardview-v7:26.0'
compile 'com.android.support:recyclerview-v7:26.0'
compile('com.crashlytics.sdk.android:crashlytics:2.5.7#aar') {
transitive = true;
}
}
apply plugin: 'com.google.gms.google-services'enter image description here

Answer 1

You cant use the both at a time gradle dependency and imported applozic source code and any one you need to use
Use this in your case you imported source code
compile project(':mobicomkitui') //Note: use this for customization
Remove this code from your app build.gradle file
compile 'com.applozic.communication.uiwidget:mobicomkitui:5.2'