Cant build android game

I installed everything correctly I believe I think I have all the settings correct but I keep getting this error when I try to build it.

alt text

  1. Try Reinstalling the Android SDK: Unity - Manual: Android environment setup
  2. Ensure that Unity can see the SDK. Edit/Preferences/External Tools/Android SDK Location

This was an issue when using Android SDK 23.

It is fixed in Unity 4.5.2, you can get the latest version of Unity to fix it.