Error while installing user interface module in linux over tomcat server

I am done with installing openmrs core in linux using tomcat server and its showing openmrs platform 2.1 is running but no login is showing here. So i added user interface module and after this i am getting the following error:-

HTTP Status 500 - Handler processing failed; nested exception is 
java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Configtype Exception reportmessage Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Configdescription The server encountered an internal error that prevented it from fulfilling this request.exceptionorg.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config
	org.springframework.web.servlet.DispatcherServlet.triggerAfterCompletionWithError(DispatcherServlet.java:1287)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:961)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.openmrs.module.web.filter.ForcePasswordChangeFilter.doFilter(ForcePasswordChangeFilter.java:60)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.openmrs.web.filter.GZIPFilter.doFilterInternal(GZIPFilter.java:64)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:72)
	org.openmrs.module.web.filter.ModuleFilter.doFilter(ModuleFilter.java:54)
	org.openmrs.web.filter.OpenmrsFilter.doFilterInternal(OpenmrsFilter.java:108)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:150)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:105)
	org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:105)
	org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:105)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
root causejava.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config
	org.springframework.web.servlet.support.JstlUtils.exposeLocalizationContext(JstlUtils.java:101)
	org.springframework.web.servlet.view.JstlView.exposeHelpers(JstlView.java:135)
	org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:142)
	org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)
	org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1228)
	org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1011)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:955)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.openmrs.module.web.filter.ForcePasswordChangeFilter.doFilter(ForcePasswordChangeFilter.java:60)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.openmrs.web.filter.GZIPFilter.doFilterInternal(GZIPFilter.java:64)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:72)
	org.openmrs.module.web.filter.ModuleFilter.doFilter(ModuleFilter.java:54)
	org.openmrs.web.filter.OpenmrsFilter.doFilterInternal(OpenmrsFilter.java:108)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:150)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:105)
	org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:105)
	org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:105)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
note The full stack trace of the root cause is available in the Apache Tomcat/8.0.30 logs.

Which user interface module did you add? And where did you download it from?

I am using module:-- legacyui-1.0-SNAPSHOT.omod i Downloaded it from https://modules.openmrs.org/#/show/231/legacy-ui-module

Can you pull the latest changes and update your master branch? Then compile and run it again to tell us what happens.

Actully i am not using git clone, i just downloaded the latest core project and than used its .war file in tomcat to run openmrs.

Can you give me the link to where you downloaded it from?

That link does not that the war file. It has the source which needs to be compiled to get a war file.

yes i created the war file by using the command:-- mvn clean install

Do that again with the latest changes as of today.

its showing error :-:

???Error executing sql: create database if not exists `?` 
default character set utf8 - Could not create connection to database 
server. Attempted reconnect 3 times. Giving up.???
Unable to create the database. The password might be incorrect or the database is not started.

Can you paste the contents of your tomcat log at pastebin.com?

created paste:-- http://pastebin.com/ykgVsEnF