Unity 編譯android APP時發生的錯誤

Unity 編譯android APP時發生的錯誤:

Error building Player: UnityException: Unable to find suitable jdk installation. Please make sure you have a suitable jdk installation. Android development requires at least JDK 6 (1.6). The latest JDK can be obtained from the Oracle http://www.oracle.com/technetwork/java/javase/downloads/index.html

==> 改用 32 位元的JDK

==> c:\Program Files\Java\jdk1.7.0_51\bin\ 的java.exe 移到 c:\Windows\