Dataset doesn't come up

Hi, Help pliz

I’m facing problem in data entry form, dataset doesn’t come up in dropdown menu

i have pasted what i did note when running tail -f /usr/local/tomcatzimrbf/logs/catalina.out

find warnings below

  • WARN 2014-02-27 09:07:23,484 Did not find any ViewResolvers to delegate to; please configure them using the ‘viewResolvers’ property on the ContentNegotiatingViewResolver ( [localhost-startStop-1])

Feb 27, 2014 9:07:26 AM org.apache.catalina.startup.HostConfig deployDirectory

ERROR 2014-02-27 09:08:20,312 Unable to render Velocity Template, ‘/dhis-web-commons/ajax/jsonOrganisationUnitTree.vm’ ( [http-bio-9999-exec-8])

org.apache.velocity.exception.VelocityException: IO Error rendering template ‘/dhis-web-commons/ajax/jsonOrganisationUnitTree.vm’

at org.apache.velocity.Template.merge(