Gradle 28

Settingan Gradle terbaru:

APP

apply plugin: 'com.android.application'
android {
    compileSdkVersion 28    defaultConfig {
        multiDexEnabled true        applicationId "com.example.komunitas"        minSdkVersion 15        targetSdkVersion 28        versionCode 1        versionName "1.0"        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"    }
    buildTypes {
        release {
            minifyEnabled false            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'        }
    }
    useLibrary 'org.apache.http.legacy'}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:support-v4:28.0.0'    implementation 'com.android.support:appcompat-v7:28.0.0'    implementation 'com.android.support:recyclerview-v7:28.0.0'    implementation 'com.android.support:cardview-v7:28.0.0'    implementation 'com.android.support.constraint:constraint-layout:1.1.3'    testImplementation 'junit:junit:4.12'    androidTestImplementation 'com.android.support.test:runner:1.0.2'    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'    implementation 'com.google.android.gms:play-services:4.0.30'    implementation 'com.android.support:design:28.0.0'    implementation 'com.android.support:multidex:1.0.1'    implementation 'com.jjoe64:graphview:4.2.2'

}

Project

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'        
        // NOTE: Do not place your application dependencies here; they belong        // in the individual module build.gradle files    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

+++++++++++++++++++++++++++

YAITU:

Add multiDexEnabled true to your build.gradle
android {
    compileSdkVersion 26
    defaultConfig {
      ...
        minSdkVersion 15
        targetSdkVersion 26
        multiDexEnabled true
     ...
    }
}

and add the dependency
dependencies {
    compile 'com.android.support:multidex:1.0.1'}

It may the first one works for u and so on but it really depends on the nature of your problem for me for example

I got the error once I have added this library
implementation 'com.jjoe64:graphview:4.2.2'

and later I discovered that I have to check that and I have to add the same version of the support libraries. So I have to try another version
compile 'com.jjoe64:graphview:4.2.1'

and it fixes the problem

it's better to use implementation or api rather compile

just replace compile with implementation, debugCompile with debugImplementation, testCompile with testImplementation and androidtestcompile with androidTestImplementation

For example: Instead of this

compile 'com.android.support:appcompat-v7:26.0.2'
compile 'com.android.support:support-v4:26.1.0'
compile 'com.github.bumptech.glide:glide:4.0.0'

use like this

implementation 'com.android.support:appcompat-v7:26.0.2'
implementation 'com.android.support:support-v4:26.1.0'
implementation 'com.github.bumptech.glide:glide:4.0.0'

SO:

Delete all the build folders and the gradle cache.
From the Build menu, press the Clean Project button.
After task completed, press the Rebuild Project button from the Build menu.