在Android Studio中应用脚本build.gradle错误

Question

enter image description here 我面临着Apply脚本build.gradle错误。我刚开始使用android studio的更新版本。我该如何纠正 这是build.gradle文件

apply plugin: 'com.android.application'
android {
  compileSdkVersion 26
  defaultConfig {
    applicationId "kushagra.example.com.practice1"
    minSdkVersion 23
    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-v7:26.1.0'
  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'
}