Problems Compiling Sibclipse in Eclipse

When I try to compile subclipse from within Eclipse (2.1.1))
1. ERROR in /home/fpe/compile/subclipse/subclipse/core/src/org/tigris/subversion/subclipse/core/SVNStatus.java (at line 14)
        import org.eclipse.core.runtime.Status;
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The import org.eclipse cannot be resolved
----------
2. ERROR in /home/fpe/compile/subclipse/subclipse/core/src/org/tigris/subversion/subclipse/core/SVNStatus.java (at line 22)
        public class SVNStatus extends Status {
                                       ^^^^^^
Status cannot be resolved or is not a valid superclass

ect.

Where do I fix this? I ran the ant file in subclipse/core

-- 
Dipl. Informatikingenieur ETH  Frank Petzold  <frank.petzold@trustsec.de>
                Understanding is a three edged sword. -- Kosh