How to setup a private git repository?

I am running Ubuntu 12.04 and created a git server and gave some users access to one repos I created. I have trouble to download the repos using open SSH through command line, no putty nothing.

I am using this command to download the repos called training :

ssh://username@xx.xx.xx.xx:22/srv/git/training.git and I tried a lot like

ssh://username@xx.xx.xx.xx:22/srv/git/training.git training   

Using this tutorial : ted felix git server

The error I get is this :

fatal: '/srv/git/training/training' does not appear to be a git repository
fatal: Could not read from remote repository.

My suggestion is, that my repos is not setup correctly.

or I made a mistake with this ssh keys. Any Ideas? I can provide all information you need, just let me know what's missing.

EDIT : It works using the command line (git bash) ... intereseting

Output as requested of folder permissions

XXXXXX@DefaultEnvironment:~$ ls -la /svr/git/training
total 16
drwxr-sr-x 3 root      git 4096 Feb  4 12:55 .
drwxrwsr-x 4 XXXXXX    git 4096 Feb  4 12:40 ..
-rw-r--r-- 1 root      git    9 Feb  4 12:55 catchmeifyoucan
drwxrwsr-x 8 root      git 4096 Feb  4 12:56 .git

The git repo you've created isn't a bare repository. A bare repository is a repo without the working tree.

From git-scm

Now, you can set up an empty repository for them by running git init with the --bare option, which initializes the repository without a working directory:

You can create a bare repo with:

`git init --bare <project name>`

Transforming a normal repo into a bare repo is not that hard, you can your best answer on StackOverflow