title: Android studio Gradle :: dependencies {compile 'com.android.support:appcompat-v7:18.0.0' } fails compilation
body: <p>I recently switched to android studio for development.
  I had created project with <strong>minsdk,targetsdk and compile with sdk as Google Api Level 8.</strong></p>
  
  <p>The project compilation fails due to following code in build.gradle file.</p>
  
  <pre><code>dependencies {
      compile 'com.android.support:appcompat-v7:18.0.0'
  }
  </code></pre>
  
  <p>Can anyone tell why this is hapenning?</p>
  
  <p>My whole build.gradle is posted below.</p>
  
  <pre><code>buildscript {
      repositories {
          mavenCentral()
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:0.5.+'
      }
  }
  apply plugin: 'android'
  
  repositories {
      mavenCentral()
  }
  
  android {
      compileSdkVersion 8
      buildToolsVersion "18.1.0"
  
      defaultConfig {
          minSdkVersion 8
          targetSdkVersion 8
      }
  }
  
  dependencies {
          compile 'com.android.support:appcompat-v7:18.0.0'
      }
  </code></pre>
  
  <p>Below is the screenshot
  <img src="https://i.stack.imgur.com/ftNb9.png" alt="enter image description here"></p>