Because you're new, let me explain what you need:
Heroku uses an amazing deployment process which based on the
git
scm system. This means that you just need to "push" your git respository to Heroku in order for it to deploy your latest revision of codeThe problem you cited is you're trying to push from
bitbucket
directly.Bitbucket
/github
are essentially just cloud repositories where you can store your code, and is not where Heroku can "read" your files from
To get this working, as you've stated in your comments, you need to push from your computer. This is achieved by creating a remote repository for Heroku, and then pushing to that, like this:
$ git remote add heroku git@heroku.com:yourherokuapp.git
$ git add .
$ git commit -a -m "Latest Commit"
$ git push heroku master