Problems with new ionic pro Git workflow

I was using legacy Ionic deploy in my Ionic 3 app. It was good but now it’s need an upgrade to Ionic pro (though I am too late, may be). So I created Ionic pro account, created new app there & linked my existing app to this newly created app.

Now when I am using git push ionic master commad, it shows this error:

Counting objects: 24427, done.
Connection to closed by remote host.
fatal: The remote end hung up unexpectedly
Delta compression using up to 4 threads.
Compressing objects: 100% (23010/23010), done.
error: failed to push some refs to ''

But I see no changes in dashboard.

Solved it. Created new project using CLI & copied existing project in it. Now everything will work.