Build Failed on Vista: File Not Found Error

[Ismail Jibrin]

I am trying to build Tolven projects on Eclipse but got the following error.
BUILD FAILEDc:\tolvendev\tolven\build.xml:173: Basedir 
c:\tolvendev\tolven\${tolven.home}\tolvenClient does not exist
I know the file c:\tolvendev\tolven\${tolven.home}\tolvenClient exists and 
there is no free space in the name.
I will appreciate any help. So far this is my second day trying to figure out 
what's happening without luck.
IMJ