Umer - 2011-07-12

I hv downloaded the source using Marecuil.
and now when i compile the source i get an erorr

C:\Users\murtaza.kazmi\Desktop\openbravo - Copy\pi\src-core\build.xml:47: C:\Users\murtaza.kazmi\Desktop\openbravo - Copy\pi\src-core\${base.lib} does not exist.

i m not sure what is wrong with it..
Anyone please help me..
Plus i am algo getting a Cross(Red) marker on my openbravo>Java Resources>srs folder and it all files under it

what i am dooing wrong ?