[imp-dev] Eclipse org.eclipse.core.runtime issue

[lehmia kiran <lehmia@xxxxxxxxx>]

IJavaProject javaProject = JavaCore.create(project);

I have 
imported following plugins
import 
org.eclipse.core.resources.IProject;
import 
org.eclipse.core.runtime.*;

but its giving me error 
"The type
 org.eclipse.core.runtime.jobs.ISchedulingRule cannot be resolved. It is
 indirectly referenced from required .class files"

how to solve 
this problem as i have imported org.eclipse.core.runtime.*; but still 
its giving me error.Any help??
its urgent as i have to deliver 
functionality by tomorrow, n this error dun allow me to proceed.

Regards
Lehmia
 kiran