In the last EAP (build #13245) Maven runner is broken. We apologize for that. To workaround this problem you need to add system property to the build configurations using Maven runner:
THIS IS PREVIEW SOFTWARE AIMED AT PROVIDING YOU WITH AN OPPORTUNITY TO TEST THE NEWEST FEATURES OF THE PRODUCT BEING UNDER DEVELOPMENT. JETBRAINS DOES NOT GUARANTEE THAT THIS SOFTWARE WILL RUN TROUBLE-FREE. USING THIS SOFTWARE IS AT YOUR OWN DISCRETION AND DOES NOT ENTITLE YOU TO ANY CUSTOMER SUPPORT.
NOTE: Please read upgrade or first instllation instructions.