Strange build error!

[thatprogrammer]

Hello All,
I am having a strange error when building robot files (any other programs seem to work).
This is the error message I receive

BUILD FAILED
Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK.
It is currently set to "C:\Program Files (x86)\Java\jre1.8.0_51"

Note that I am using the run as deploy button to build the code, despite not being connected to a robot.
Anyone have an idea what's going on?
Thanks!