Building debian packages, using OBS - Ends with no such file or directory

I have the following packages, which builds find for all the RPM distor’s: https://build.opensuse.org/package/show/home:looop/dynstr
My problem is when I try for instance

osc build Debian_6.0 dynstr.dsc

, it result in this error:


		 		

   42s] removing nis flags from /var/tmp/build-root/Debian_6.0-x86_64/etc/nsswitch.conf...
   42s] now finalizing build dir...
   43s] running debian transformer...
   43s] converting /var/tmp/build-root/Debian_6.0-x86_64/usr/src/packages/SOURCES/dynstr_v_0_1c.tar.bz2 to dynstr_v_0_1c.tar.gz
   43s] bzcat: Can't open input file  /var/tmp/build-root/Debian_6.0-x86_64/usr/src/packages/SOURCES/dynstr_v_0_1c.tar.bz2:  No such file or directory.
   43s] tar:  /var/tmp/build-root/Debian_6.0-x86_64/usr/src/packages/SOURCES/debian.tar.gz:  Cannot open: No such file or directory
   43s] tar: Error is not recoverable: exiting now
   43s] tar: 
   43s] debian transforming failed.



 		

I am bit lost for what to do can anyone help ?

Thanks in advance