title: Android Studio install failed - unable to run mksdcard sdk tool in Windows
body: <p>I installed Android Studio, but now fail in installing Android SDK when start lauching it. 
  It says "unable to run mksdcard sdk tool", and tips that some libraries may be missing.
  I tried 32bit and 64bit but resulted the same.
  jdk: 1.7.0_80
  os: windows 7
  what should I do now?</p>