Error: "destination path 'XXX' already exists and is not an empty directory

[hachillesIBM]

Hi,
I'm trying to migrate an RTC repository to git using the tools.. I've set up the config.ini file & when I run the migration.py script I get the following error:
"fatal: destination path 'IWM_m4' already exists and is not an empty directory.

IWM_m4 is the "git-Reponame' in the config.ini script.. this repo did not exist before I ran the migration script.. so I'm not sure why I am seeing this error.. THere is a cut & paste of the logging below (I added a couple logging lines to see some info)

Any insights/suggestions are appreciated.

./migration.py

refs/heads/rtc_migration1
refs/heads/rtc_migration1_branchpoint
13:46:32 - Migration will take place in tmp/rtc_migration_tmp
Initialized empty Git repository in /Users/heather_achilles/GitHub/rtc2git/tmp/rtc_migration_tmp/IWM_m4/
13:46:32 - Repository was created in /Users/heather_achilles/GitHub/rtc2git/tmp/rtc_migration_tmp
fatal: destination path 'IWM_m4' already exists and is not an empty directory.
13:46:32 - cloned Repo Name IW
13:46:32 - Repo Name IWM_m4
Traceback (most recent call last):
File "./migration.py", line 169, in
migrate()
File "./migration.py", line 63, in migrate
initialize()
File "./migration.py", line 27, in initialize
git.initalize()
File "/Users/heather_achilles/GitHub/rtc2git/gitFunctions.py", line 53, in initalize
self.createrepo()
File "/Users/heather_achilles/GitHub/rtc2git/gitFunctions.py", line 68, in createrepo
os.chdir(self.clonedRepoName)
FileNotFoundError: [Errno 2] No such file or directory: 'IW'

[hachillesIBM]

looks like the problem is that the repo name needs a ".git" .. adding that extension allowed me to get by this error. Thanks!