perl - svn to git migration -- Filesystem has no item -

i'm trying move project on server (using svn) server (using git). approach converting svn git first, pushing git repository new server.

while trying convert svn git, referred link -- how migrate svn repository history new git repository?

it worked fine, until hit --

filesystem has no item: working copy path 'branches/some_tests' not exist in repository @ /mingw64/share/perl5/site_perl/git/svn/ra.pm line 312. 

the path in question exists in repository, , have no problem commit changes files in folder. apparently don't know perl. if has suggestion in modifying script or different approach, i'd love try out. appreciate help!