Android Studio 3无法构建我的项目

我正在使用Android Studio 3预览来编写代码并构建一个android kotlin项目,但由于这个错误似乎没有编译:

:java.lang.Exception:无法在10000毫秒内从守护进程获取响应

无法执行增量编译:无法连接到Kotlin编译守护程序无法连接到kotlin守护程序。 使用回退策略。

Error:Failed to complete Gradle execution. Cause: Gradle build daemon disappeared unexpectedly (it may have been killed or may have crashed) 

这是我的gradle构建文件

 // Top-level build file where you can add configuration options common to all sub-projects/modules. buildscript { ext.kotlin_version = '1.1.3-2' repositories { google() jcenter() } dependencies { classpath 'com.android.tools.build:gradle:3.0.0-alpha9' classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" // NOTE: Do not place your application dependencies here; they belong // in the individual module build.gradle files } } allprojects { repositories { google() jcenter() } } task clean(type: Delete) { delete rootProject.buildDir } apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' android { compileSdkVersion 26 buildToolsVersion '26.0.1' defaultConfig { applicationId "com.jr.app" minSdkVersion 19 targetSdkVersion 26 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" buildConfigField "String", "DEMO_SERVER_URL", "https://demoserver.restlet.net/v1/" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { implementation fileTree(include: ['*.jar'], dir: 'libs') implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version" implementation 'com.android.support:appcompat-v7:26.0.0' implementation 'com.android.support:design:26.0.0' implementation 'com.squareup.retrofit2:retrofit:2.3.0' implementation 'com.android.support:support-v4:26.0.0' testImplementation 'junit:junit:4.12' androidTestImplementation 'com.android.support.test:runner:1.0.0' androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.0' } 

谢谢