title: Manifest merger failed : uses-sdk:minSdkVersion 9 cannot be smaller than version L declared in library com.android.support
body: <p>I have a problem - I imported the project in Android Studio. When I run the project I get the following error:</p>
  
  <p><em>Error:Execution failed for task ':driverNotes:processDebugManifest'.</em></p>
  
  <blockquote>
    <p>Manifest merger failed : uses-sdk:minSdkVersion 9 cannot be smaller than version L declared in library com.android.support:support-v4:21.0.0-rc1</p>
  </blockquote>
  
  <pre><code>android {
  compileSdkVersion 19
  buildToolsVersion '19.1.0'
  defaultConfig {
      minSdkVersion 9
      targetSdkVersion 19
  }
  </code></pre>
  
  <p><strong>Dependencies in build.gradle:</strong></p>
  
  <pre><code>dependencies {
      compile project(':facebookSDK')
      compile project(':vKOpenAuthActivity')
      compile project(':easyFousquareActivity')
      compile project(':pullToRefresh')
      compile project(':volley') 
      compile 'com.android.support:appcompat-v7:20.+'
      compile 'com.android.support:support-v4:20.+'
      compile 'com.google.android.gms:play-services:+'   
      compile files('libs/commons-codec-1.9.jar')
      compile files('libs/signpost-commonshttp-1.2.1.1.jar')
      compile files('libs/signpost-core-1.2.1.2.jar')
      compile files('libs/twitter4j-core-4.0.1.jar')
      compile files('libs/nineoldandroids-2.4.0.jar')
      compile files('libs/gson-2.2.4.jar')
      compile files('libs/httpclientandroidlib-1.2.0.jar')
  
  }
  </code></pre>
  
  <p>I used java 7. How can I get rid of this error message?</p>