Enterprise installation's admin menu shows "Unable to compile class for JSP"

Platform Version: OpenMRS Enterprise version 1.11.4 WAR. OpenMRS Version: OpenMRS 2.3

Question: i downloaded the enterprise version of OpenMRS and installed it using the “Advanced” installation option. The problem now is that THE ADMIN MENU DOES NOT OPEN. IT KEEPS GIVING THE ERROR: “Unable to compile class for JSP”