org.apache.taglibs.standard.tag.common.core.NullAttributeException: The "url" attribute illegally evaluated to "null" or "" in <import>

	at org.apache.taglibs.standard.tag.common.core.ImportSupport.doStartTag(Unknown Source)

	at org.openmrs.web.taglib.PortletTag.doStartTag(PortletTag.java:110)

	at org.apache.jsp.WEB_002dINF.view.index_jsp._jspx_meth_openmrs_005fportlet_005f0(index_jsp.java:2949)

	at org.apache.jsp.WEB_002dINF.view.index_jsp._jspx_meth_openmrs_005fextensionPoint_005f3(index_jsp.java:2897)

	at org.apache.jsp.WEB_002dINF.view.index_jsp._jspx_meth_c_005fif_005f11(index_jsp.java:2854)

	at org.apache.jsp.WEB_002dINF.view.index_jsp._jspx_meth_openmrs_005fauthentication_005f1(index_jsp.java:2823)

	at org.apache.jsp.WEB_002dINF.view.index_jsp._jspService(index_jsp.java:462)

	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)

	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308)

	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:70)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:70)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:659)

	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:457)

	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:395)

	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:311)

	at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:236)

	at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:257)

	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1183)

	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:902)

	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)

	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)

	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

	at org.openmrs.web.filter.GZIPFilter.doFilterInternal(GZIPFilter.java:60)

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

	at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:76)

	at org.openmrs.module.web.filter.ModuleFilter.doFilter(ModuleFilter.java:58)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

	at org.openmrs.web.filter.OpenmrsFilter.doFilterInternal(OpenmrsFilter.java:112)

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

	at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

	at org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:82)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

	at org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:82)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

	at org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:82)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)

	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)

	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)

	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)

	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)

	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:879)

	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)

	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)

	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)

	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)

	at java.lang.Thread.run(Thread.java:619)