Hi all I'm new to Compiere ERP ,I'm  trying to checkout source code from
http://svn.compiere.org/core/trunk  with a valid username and password .No  problem i can connect to repository
(Also i could be able to browse the repository online no problem )
but i cannot checkout because following error occurring (I'm using NetBeans 6.8  as client) ?

org.tigris.subversion.javahl.ClientException: RA layer request failed
Server sent unexpected return value (400 Bad Request) in response to REPORT request for '/core/!svn/vcc/default'

Same way i used eclipse 3.5 to connect to repository but there also exceptions :
   RA layer request failed
svn: PROPFIND request failed on '/core/trunk'
svn: PROPFIND of '/core/trunk': Could not resolve hostname `svn.compiere.org': The requested name is valid and was found in the database, but it does not have the correct associated data being resolved for.   (http://svn.compiere.org)

What is the problem i have , is there problem with my tools or connection

Could any one help please ?