Class not found when jetty refreshes context

I downloaded the latest version of master (1.12) and I can’t run the webapp. When the initial setup runs ( it throws this:

[ERROR] Error reconfiguring/restarting webapp after change in watched files org.openmrs.api.APIException: Service not found: interface org.openmrs.messagesource.MessageSourceService at org.openmrs.api.context.ServiceContext.getService(ServiceContext.java:693) at org.openmrs.api.context.ServiceContext.getMessageSourceService(ServiceContext.java:486) at org.openmrs.api.context.Context.getMessageSourceService(Context.java:490) at org.openmrs.api.APIException.(APIException.java:69) at org.openmrs.api.context.Context.getContextDAO(Context.java:165) at org.openmrs.api.context.Context.closeSession(Context.java:742) at org.openmrs.web.Listener.contextDestroyed(Listener.java:545)