Android Studio检索项目的父项时出错:找不到与给定名称'Theme.AppCompat.Light.DarkActionBar'匹配的资源

我是android studio的初学者，我已经开始创建名为Hello World的应用，但始终在gradle build选项卡中，它显示2个错误.我遇到的错误是:

I am a beginner in android studio, i have started creating the app named Hello World but always in the gradle build tab, its shows 2 errors. The errors i face are:

错误:(1)检索项目的父项时出错:未找到与给定名称'Theme.AppCompat.Light.DarkActionBar'匹配的资源.

Error:(1) Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light.DarkActionBar'.

错误:任务':app:processDebugResources'的执行失败.> com.android.ide.common.process.ProcessException:org.gradle.process.internal.ExecException:处理'command'e:\ Program Files \ Android \ sdk \ build-tools \ 22.0.1 \ aapt.exe''以非零退出值1完成

Error:Execution failed for task ':app:processDebugResources'.> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'e:\Program Files\Android\sdk\build-tools\22.0.1\aapt.exe'' finished with non-zero exit value 1

这是我的build.gradle

This is my build.gradle

apply plugin: 'com.android.application'
android {
    compileSdkVersion 22
    buildToolsVersion '22.0.1'

    defaultConfig {
        applicationId "com.example.android.helloworld"
        minSdkVersion 15
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
} dependencies {} 

我现在该怎么办才能正确运行我的程序，请帮助我........

What should i do now to run my program without errors, please help me........