Message 'src refspec master does not match any' when pushing commits in Git

Question

I clone my repository with:

git clone ssh://xxxxx/xx.git 

But after I change some files and add and commit them,

Answer 1

For me,following worked to move untracked files:

git add --all

Next, I followed similar steps

 git commit -m "First commit"

Then,

git remote add origin git@github.....

Last but not the least:

git push -u origin master

As you do this, Windows security will pop up asking for your username and password.