I'm trying to figure out why my own code from my desktop repository is not being pushed into the repository I created in Github. 

I did the following:

```
cd "/your/repo/dir"
git clone https://github.com/user_AKA_you/repoName # (creates /your/repo/dir/repoName)
cp "/all/your/existing/code/*" "/your/repo/dir/repoName/"
git add -A
git commit -m "initial commit"
git push origin master

```

and I receive the message:

```
To https://github.com/skumar225/battleship.git
 ! [rejected]        master -> master (non-fast-forward)
error: failed to push some refs to 'https://github.com/skumar225/battleship.git'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Integrate the remote changes (e.g.
hint: 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

```

What is the mistake and how can I fix this?