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! [rejected] Heroku に Push できなかった問題

Posted at
git heroku push

すると
こんなエラー

To https://git.heroku.com/~~.git
 ! [rejected]        master -> master (non-fast-forward)
error: failed to push some refs to 'https://git.heroku.com/~~.git'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Integrate the remote changes (e.g.
hint: 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

しらべたところ

heroku 側のcommit履歴?とローカル側の履歴が違うためだったとすいそく

git rebase heroku/master 

して Heroku のブランチの先端?をローカルの先端に置き換えた?

そして

git push heroku

で無事pushできた。

リモートリポジトリとローカルがべつのものに変わった?ぽいので

git pull したがエラー

fatal: refusing to merge unrelated histories

これで解決?した

git merge --allow-unrelated-histories origin/master

この後,heroku run rails db:migrateなどして

ブラウザからアプリに接続、、、できない!

原因は、アプリいったん止めるコマンドかと思い

heroku restart

しかし変わらず
今度は
https://qiita.com/rebi/items/efd1c36f0a9e46222d80
を参考に

heroku ps:scale web=1

でいけた!

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