Why is git push heroku master asking for username and password?

Question

git

The SSH key was generated and added by handles on the heroku website, but such an error pops up unevenly. Maybe I missed some step when creating the key? Or is he missing something else?
And what kind of username and password is it, maybe it will be easier to drive it in with your hands now, then where can I get them?
upd: Everything worked on Linux, apparently there is a problem with SSH keys.

Answer 1

It is written:
We enter the login \ pass from heroku and that's it.

Answer 2

You forgot to add your public SSH key to heroku so that heroku can recognize you during git operations.
https://devcenter.heroku.com/articles/keys

Answer 3

Not sure about Heroku, but on Github there is a situation where the repo was added as HTTPS, not SSH.