makeblastdb error while using repeat masker locally

[novino11]

Hii
I installed a local copy of Repeat masker on my system . However when I tried to mask repeated sequences in my genome , I get an error invoking makeblast db- something like this:

./RepeatMasker apis2noempty.fa [11:31AM]
RepeatMasker version open-3.3.0
Search Engine: NCBI/RMBLAST
Master RepeatMasker Database: /home/chipseq/Naveen/repmasker/RepeatMasker/Libraries/RepeatMaskerLib.embl ( Complete Database: 20110419 )


Building general libraries in: /home/chipseq/Naveen/repmasker/RepeatMasker/Libraries/20110419/general
RepeatMasker::createLib(): Error invoking /home/chipseq/Naveen/repmasker/rmblast/bin/makeblastdb on file /home/chipseq/Naveen/repmasker/RepeatMasker/Libraries/20110419/general/at.lib.


Can anyone help me solve this issue
Thanks

[ECO]

Needed this question myself...answer was mostly found here:

http://biostar.stackexchange.com/questions/9197/error-invoking-makeblastdb