[안드로이드 스튜디오] Failed to find style 'coordinatorLayoutStyle' in current theme

 

네비게이션 드로어 액티비티를 생성했더니 제목과 같은 에러가 발생했다.

 

apply plugin: 'com.android.application'

android {
    //28-> 26
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.example.user.navigationtest"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    //implementation 'com.android.support:appcompat-v7:28.0.0-alpha3'
    implementation 'com.android.support:appcompat-v7:26.1.0'
    //implementation 'com.android.support:design:28.0.0-beta01'
    implementation 'com.android.support:design:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    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'
}