title: Android Studio could not find any version that matches com.android.support:appcompat-v7:23.+
body: <p>New to Android Studio. After setting everything up I tried to run a basic project and keep getting this error. I changed my appcompat version to 7.22.+ and it builds. Can anyone explain this? I know I'm supposed to download that version but from where? Thank you!</p>
  
  <p>Error:A problem occurred configuring project ':app'.</p>
  
  <blockquote>
    <p>Could not resolve all dependencies for configuration ':app:_debugCompile'.
    Could not find any version that matches com.android.support:appcompat-v7:23.+.
         Versions that do not match:
             22.2.1
             22.2.0
             22.1.0
             22.0.0
             21.0.3
             + 7 more
         Searched in the following locations:
             <a href="https://jcenter.bintray.com/com/android/support/appcompat-v7/maven-metadata.xml" rel="noreferrer">https://jcenter.bintray.com/com/android/support/appcompat-v7/maven-metadata.xml</a>
             <a href="https://jcenter.bintray.com/com/android/support/appcompat-v7/" rel="noreferrer">https://jcenter.bintray.com/com/android/support/appcompat-v7/</a>
             file:/Users/liyicky/Library/Android/sdk/extras/android/m2repository/com/android/support/appcompat-v7/maven-metadata.xml
             file:/Users/liyicky/Library/Android/sdk/extras/google/m2repository/com/android/support/appcompat-v7/maven-metadata.xml
             file:/Users/liyicky/Library/Android/sdk/extras/google/m2repository/com/android/support/appcompat-v7/
         Required by:
             RayWenderlichTutorial:app:unspecified</p>
  </blockquote>