gradle - No resource found that matches the given name (at 'dialogCornerRadius' with value '?android:attr/dialogCornerRadius')

Question

Can anybody help why I am getting an error in the following?

Error:(7, 41) No resource found that matches the given name (at 'dialogCornerRadius' with value '?android:attr/dialogCornerRadius').

apply plugin: 'com.android.application'

//Add these lines
def Base_URL = '"' + WEBServiceBaseURL + '"' ?: '"Define BASE URL"';
def SMS_Base_URL = '"' + WEBServiceBaseSMSURL + '"' ?: '"Define SMS BASE URL"';

android.buildTypes.each { type ->
    type.buildConfigField 'String', 'Base_URL', WEBServiceBaseURL
    type.buildConfigField 'String', 'SMS_Base_URL', WEBServiceBaseSMSURL
}

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.1"
    defaultConfig {
        applicationId "com.bla.bla"
        minSdkVersion 19
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        multiDexEnabled  true
    }
    buildTypes {
        release {
            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:26.+'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:design:+'
    compile files('libs/jxl-2.6.jar')
    compile 'com.google.gms:google-services:+'

    compile 'com.google.firebase:firebase-core:11.8.0'
    compile 'com.google.firebase:firebase-messaging:11.8.0'
}

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

Answer 1

I fixed this issue by selecting

API 27+: Android API 27, P preview (Preview)

in the project structure settings. Following image shows my setting. The 13 errors that were coming while building the app, have disappeared.