Heroku: "If you are developing on a branch and deploying via Git you must run"

user_5783745 0
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Heroku thinks I'm on a "different branch", but I am not (and the same version of the code most definitely has not "been built" as claimed):

remote:  ! ## Warning - The same version of this code has already been built: e437cb472232ed140fa6dd710e8b4a6b16b8b213
remote:  !
remote:  ! We have detected that you have triggered a build from source code with version e437cb472232ec180fa6dd700e8b4a6b1ab8b213
remote:  ! at least twice. One common cause of this behavior is attempting to deploy code from a different branch.
remote:  !
remote:  ! If you are developing on a branch and deploying via git you must run:
remote:  !
remote:  !     git push heroku <branchname>:main
remote:  !
remote:  ! This article goes into details on the behavior:
remote:  !   https://devcenter.heroku.com/articles/duplicate-build-version

The mentioned article says

This article is a work in progress, or documents a feature that is not yet released to all users. This article is unlisted. Only those with the link can access it.

In any case, I ran

git push heroku master:main

as requested and it gave the warning, but I deployed anyway (which it wasn't doing before with git push heroku master).

The app deployed, which means the problem is solved. But I am confused as to what happened here to cause the application to not deploy without the special command above.

I am not sure if this is some weird problem with Heroku or if it's some new change at GitHub? (I know they were planning to change the word 'master' to 'main' - I wonder if that is the reason?, or if this is simply some changes to Heroku, possibly just temporary ones given the message on the referenced article?)

heroku github git
4 Answers

What worked for me was

git push heroku master:main

And it all worked (I am not sure why this was necessary, though).

user_57837450

Mine worked with:

git push heroku HEAD:master

user_134639530

This solution worked for me:

Add and checkout a new branch

git checkout -b tes

And push it to the branch above:

git push heroku tes
user_90027610

I just wanted to add that I need to run git add and then git commit before proceeding, and then it worked with

git push heroku master
user_85818600
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