git push heroku master - has error

I am trying to put my app on heroku, following the instructions, when
I get here I get this error:

$ git push heroku master
Enter passphrase for key '/c/Users/Laurence/.ssh/id_rsa':
Counting objects: 277, done.
Delta compression using up to 2 threads.
Compressing objects: 100% (246/246), done.
Read from remote host heroku.com: The connection was aborted
fatal: sha1 file '<stdout>' write error: Invalid argument
error: failed to push some refs to 'git@heroku.com:stormy-
meadow-768.git'

I am trying to put my app on heroku, following the instructions, when

I get here I get this error:

$ git push heroku master

Enter passphrase for key ‘/c/Users/Laurence/.ssh/id_rsa’:

Counting objects: 277, done.

Delta compression using up to 2 threads.

Compressing objects: 100% (246/246), done.

Read from remote host heroku.com: The connection was aborted

fatal: sha1 file ‘’ write error: Invalid argument

error: failed to push some refs to 'git@heroku.com:stormy-

meadow-768.git’

What does git remote show heroku display?

B.