Heroku/Django - 无法检测到此应用程序的默认语言

Question

我第一次尝试通过 Heroku 部署 Django 应用程序。

当我运行git push heroku master 时，它会返回此错误：

remote: -----> Building on the Heroku-20 stack
remote: -----> Determining which buildpack to use for this app
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:  !
remote:  ! ## Warning - The same version of this code has already been built: e6acd22b123b939729546f4f06f368a8855a4744
remote:  !
remote:  ! We have detected that you have triggered a build from source code with version e6acd22b123b939729546f4f06f368a8855a4744
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
remote: 
remote: Verifying deploy...
remote: 
remote: !       Push rejected to vygrapp.
remote: 
To https://git.heroku.com/vygrapp.git
 ! [remote rejected] master -> main (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/vygrapp.git'

在 SO 上遇到类似问题后，我相信我的文件结构已正确配置 - git 从与我的 Procfile 等相同的位置部署。我还有一个 requirements.txt 文件，我相信它告诉 Heroku 这是一个 python 应用程序 - 所以我可以'不知道为什么 buildpack 不工作。

根据 cmets 和反馈，我将所有文件夹移至根目录，但收到相同的错误。

Answer 1

Heroku 仅在项目的根目录中查找您的 Procfile、requirements.txt 和 runtime.txt。将它们上移一级，使其位于您的 .gitattributes 旁边。

这应该让 Heroku 检测到这是一个 Python 项目并克服当前错误。

但您的项目仍然无法运行。开箱即用，Heroku 将期望您的 Django 项目也位于存储库的根目录中。您可能可以通过使用DJANGO_SETTINGS_MODULE 环境变量和/或PYTHONPATH 来使其从子目录中运行，但最简单的解决方案是将整个项目移到一个目录中。

我建议您将所有内容从anybody/anybody1/ 移至anybody/，然后删除现在为空的anybody/anybody1/ 目录。

然后提交并重新部署。