What License Information should be used for ReSharper EAP builds?

ReSharper EAP builds do not require valid License Information - all ReSharper EAP builds do include a 30-day evaluation period (even if you already used it).

When you're running out of the evaluation period, just download and install a fresh ReSharper EAP build from here - your evaluation period will be renewed, and you can continue to use ReSharper EAP, basically, for free.