Unable to create .rev_map file

Hello all!

I am trying to clone a svn repo and I keep getting the following message:

Couldn't create .git/svn/trunk/.rev_map.????????-????-????-????-????????????: No such file or directory

Instead of cloning, I tried

git svn init <svn-repo-URL> -T trunk -t tags -b branches
   ===> This creates a .git folder successfully.

git svn fetch -rNNNNN
   ===> This does fetch the files but at the end the above quoted error
message comes up.

Not sure whats causing this problem. Any help is greatly appreciated.

Thanks, Anand.

PS: My apologies if this is a repeat question. I did search the mailing list
using the error message I have quoted and couldn't find any previous post.