Not able to redeploy the app after upgrading the heroku stack - heroku

Question

We are in process of upgrading the heroku stack from 18 to 22. After clicking on upgrade while we are trying to redeploy the app we are getting the below error while doing git push:
error: src refspec master does not match any
error: failed to push some refs to 'https://git.heroku.com/test.git'
We are following the below steps to redeploy:
$ heroku git:clone -a test
$ cd test
$ git add .
$ git commit -am "make it better"
$ git push heroku master
Also we have followed the below steps from CLI as well
To upgrade via the Heroku CLI, use the stack:set command on your production app:
heroku stack:set heroku-22 -a test
Setting stack to heroku-22... done
You will need to redeploy ⬢ for the change to take effect.
Run git push heroku main to trigger a new build on ⬢ .
git commit --allow-empty -m "Upgrading to heroku-22"
[master (root-commit) 89fea09] Upgrading to heroku-22
git push heroku master
Enumerating objects: 2, done.
Counting objects: 100% (2/2), done.
Writing objects: 100% (2/2), 185 bytes | 185.00 KiB/s, done.
Total 2 (delta 0), reused 0 (delta 0), pack-reused 0
remote: error: pathspec '.' did not match any file(s) known to git.
remote:
remote: ! Heroku Git error, please try again shortly.
remote: ! See http://status.heroku.com for current Heroku platform status.
remote: ! If the problem persists, please open a ticket
remote: ! on https://help.heroku.com/tickets/new
remote:
To https://git.heroku.com/test.git
! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/test.git'
bhattacharjee.c#bhattac-ltmynzq ei-mule-dashboard-ee1 % git push heroku main
error: src refspec main does not match any
error: failed to push some refs to 'https://git.heroku.com/test.git'.
We are getting the below error here:
remote: error: pathspec '.' did not match any file(s) known to git.
remote:
remote: ! Heroku Git error, please try again shortly.
remote: ! See http://status.heroku.com for current Heroku platform status.
remote: ! If the problem persists, please open a ticket
remote: ! on https://help.heroku.com/tickets/new
remote:
To https://git.heroku.com/test.git
! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/test.git'
bhattacharjee.c#bhattac-ltmynzq ei-mule-dashboard-ee1 % git push heroku main
error: src refspec main does not match any
error: failed to push some refs to 'https://git.heroku.com/test.git'.
Could you please help us in resloving the issue.

Answer 1

We are following the below steps to redeploy:
$ heroku git:clone -a test
First of all, you shouldn't be doing this:
A Heroku app’s Git repository is intended for deployment purposes only. Cloning from this repository is not officially supported as a feature and should be attempted only as a last resort. Do not use this repository as your app’s canonical “origin” repository. Instead, use your own Git server or a version control service such as GitHub.
If this is part of your regular workflow, please adjust accordingly. Heroku is not a source code management platform.
Now, onto the problem:
src refspec master does not match any
You simply don't have a master branch.
Heroku builds from one of two branches: main (which is newer and slowly becoming the community standard default branch name) and master (legacy).
If you don't have a master branch, you almost certainly have a main branch that Heroku will happy build from:
git push heroku main
If you need to deploy from some other branch another-branch, you still need to push to main (or master) on Heroku:
git push heroku another-branch:main
Finally, please don't actually use "make it better" as a commit message. Spend some time making commit messages clear and meaningful. There is lots of good advice floating around about how you can do that.