Had the following error in Eclipse after installing Android 5.0 (SDK 21)
"Loading data for Android 5.0" has encountered a problem.
Parsing Data for android-21 failed
unsupported major.minor version 51.0
Try installing JDK 1.8 and reload Eclipse.
http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html