title: Gradle error after update: com.android.tools:sdk-common
body: <p>I updated Android Studio to the last version (3.1 Canary 8) and mandatorily the com.android.tools.build:gradle to version 3.1.0-alpha08, but syncing the project I get this error:</p>
  
  <pre><code>Could not find sdk-common.jar (com.android.tools:sdk-common:26.1.0-alpha08).
  Searched in the following locations:
      https://maven.google.com/com/android/tools/sdk-common/26.1.0-alpha08/sdk-common-26.1.0-alpha08.jar
  </code></pre>
  
  <p>I searched around but not solution found, can someone help me solve this issue?</p>
  
  <pre><code>buildscript {
      repositories {
          jcenter()
          maven {
              url 'https://maven.google.com/'
              name 'Google'
          }
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:3.1.0-alpha07'
  
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
          classpath 'com.google.gms:google-services:3.1.2'
      }
  }
  
  allprojects {
      repositories {
          jcenter()
          maven {
              url 'https://maven.google.com/'
              name 'Google'
          }
      }
  }
  
  task clean(type: Delete) {
      delete rootProject.buildDir
  }
  </code></pre>
  
  <p>Thanks a lot in advance.</p>
  
  <p><strong>UPDATE: this is the new bukd.gradle (project):</strong></p>
  
  <pre><code>buildscript {
      repositories {
          google()
          jcenter()
          maven {
              url 'https://maven.google.com/'
              name 'Google'
          }
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:3.1.0-alpha08'
  
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
          classpath 'com.google.gms:google-services:3.1.2'
      }
  }
  
  allprojects {
      repositories {
          jcenter()
          maven {
              url 'https://maven.google.com/'
              name 'Google'
          }
      }
  }
  
  task clean(type: Delete) {
      delete rootProject.buildDir
  }
  </code></pre>