title: Old projects are not building after changing SDK path in Android Studio
body: <p>Recently, I uninstalled my SDK from  location <code>/Users/Shared/Downloads/adt-bundle-mac-x86_64-20130729/sdk</code> and installed in <code>/usr/local/android_sdk/sdk</code>
  and the same changes I made in Android Studio Settings
  Configure->Project Default->Project Structure->Platform Settings->SDK</p>
  
  <p>Now, The problem is with these changes I can build any new project but when I open my old project It gives me this error:</p>
  
  <pre><code>Gradle 'GPSProvider' project refresh failed:
             Could not execute build using Gradle distribution 'http://services.gradle.org/distributions/gradle-1.7-bin.zip'.
             Build file '/Users/zohrakhan/AndroidStudioProjects/GPSProvider/GPSProvider/build.gradle' line: 9
             A problem occurred evaluating project ':GPSProvider'.
             A problem occurred evaluating project ':GPSProvider'.
             The SDK directory '/Users/Shared/Downloads/adt-bundle-mac-x86_64-20130729/sdk' does not exist.
  </code></pre>
  
  <p>Please help me to find out the problem. </p>
  
  <p>Edit 1:</p>
  
  <pre><code>buildscript {
      repositories {
          mavenCentral()
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:0.5.+'
      }
  }
  apply plugin: 'android'
  
  repositories {
      mavenCentral()
  }
  
  android {
      compileSdkVersion 19
      buildToolsVersion "19.0.0"
  
      defaultConfig {
          minSdkVersion 11
          targetSdkVersion 16
      }
  }
  
  dependencies {
      compile 'com.android.support:appcompat-v7:18.0.0'
  }
  </code></pre>