！ [remote denied] master -> master (pre-receive hook denied) 错误：未能将一些 refs 推送到 '...''

Question

这是我的服务器文件夹：https://github.com/Yokubjon-J/react-chat-testSuite/tree/master/server。每当我运行“git push heroku master”时，我都会收到以下错误：

Total 866 (delta 199), reused 0 (delta 0), pack-reused 0
remote: Compressing source files... done.
remote: Building source:
remote:
remote:  !     No default language could be detected for this app.
remote:                         HINT: This occurs when Heroku cannot detect the buildpack to use for this application automatically.
remote:                         See https://devcenter.heroku.com/articles/buildpacks
remote:
remote:  !     Push failed
remote: Verifying deploy...
remote:
remote: !       Push rejected to my-first-react-chat-app.
remote:
To https://git.heroku.com/my-first-react-chat-app.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/my-first-react-chat-app.git'

我浏览了几个 stackoverflow 答案都无济于事。 有什么建议么？ 我设置了 buildpacks，在 procfile 中输入了“web: node index.js”，但没有任何帮助

Answer 1

我运行cd ..，然后运行git subtree push --prefix server heroku master。这样问题就解决了。供参考：https://dev.to/stlnick/how-to-deploy-a-full-stack-mern-app-with-heroku-netlify-ncb