推拒绝，未能检测到设定的buildpack的Heroku/PHP

Question

我试图部署从GitHub到Heroku的我的PHP应用程序，但它不工作。我已经有将php应用部署到heroku的经验，但由于某种原因，这次我遇到了麻烦。

这就是我所做的。

1. 创建于Heroku上的应用
2. 链接我的GitHub我的Heroku应用
3. 增加从我的本地目录
4. 集buildpack一个遥控器的Heroku应用到PHP
5. 运行git push heroku master

我的目录有以下文件：

home.html 
index.php 
index.css 

这里是我的index.php：Push rejected, failed to detect set buildpack heroku/php

这是我第5步后得到：

Counting objects: 52, done. 
Delta compression using up to 4 threads. 
Compressing objects: 100% (48/48), done. 
Writing objects: 100% (52/52), 1.12 MiB | 1.23 MiB/s, done. 
Total 52 (delta 20), reused 0 (delta 0) 
remote: Compressing source files... done. 
remote: Building source: 
remote: 
remote: -----> Using set buildpack heroku/php 
remote: 
remote: !  Push rejected, failed to detect set buildpack heroku/php 
remote: More info: https://devcenter.heroku.com/articles/buildpacks#detection-failure 
remote: 
remote: Verifying deploy.... 
remote: 
remote: ! Push rejected to appp. 
remote: 
To https://git.heroku.com/appp.git 
! [remote rejected] master -> master (pre-receive hook declined) 
error: failed to push some refs to 'https://git.heroku.com/appp.git' 

这里是我的heroku logs：

2015-11-19T00:22:31.307947+00:00 heroku[api]: Set BUILDPACK_URL config vars by email@gmail.com 
2015-11-19T00:22:31.307947+00:00 heroku[api]: Release v3 created by email@gmail.com 
2015-11-19T00:22:43.284779+00:00 heroku[slug-compiler]: Slug compilation started 
2015-11-19T00:22:43.284789+00:00 heroku[slug-compiler]: Slug compilation failed: failed to detect set buildpack heroku/php 
2015-11-19T00:22:43.284790+00:00 heroku[slug-compiler]: More info: https://devcenter.heroku.com/articles/buildpacks#detection-failure 
2015-11-19T00:27:00.648462+00:00 heroku[api]: Starting process with command `false && AUTOMATED DIAGNOSIS BEING RUN BY HEROKU SUPPORT; cat Procfile` by email@gmail.com 
2015-11-19T00:27:01.379352+00:00 heroku[run.2268]: Awaiting client 
2015-11-19T00:27:01.441226+00:00 heroku[run.2268]: Starting process with command `false && AUTOMATED DIAGNOSIS BEING RUN BY HEROKU SUPPORT; cat Procfile` 
2015-11-19T00:27:01.858759+00:00 heroku[run.2268]: State changed from starting to up 
2015-11-19T00:27:03.971434+00:00 heroku[run.2268]: Process exited with status 1 
2015-11-19T00:27:03.989162+00:00 heroku[run.2268]: State changed from up to complete 
2015-11-19T00:30:14.310979+00:00 heroku[slug-compiler]: Slug compilation started 
2015-11-19T00:30:14.310987+00:00 heroku[slug-compiler]: Slug compilation failed: failed to detect set buildpack heroku/php 
2015-11-19T00:30:14.310988+00:00 heroku[slug-compiler]: More info: https://devcenter.heroku.com/articles/buildpacks#detection-failure 
2015-11-19T00:31:54.735764+00:00 heroku[slug-compiler]: Slug compilation started 
2015-11-19T00:31:54.735775+00:00 heroku[slug-compiler]: Slug compilation failed: failed to detect set buildpack heroku/php 
2015-11-19T00:31:54.735776+00:00 heroku[slug-compiler]: More info: https://devcenter.heroku.com/articles/buildpacks#detection-failure 
2015-11-19T00:34:31.326372+00:00 heroku[slug-compiler]: Slug compilation started 
2015-11-19T00:34:31.326383+00:00 heroku[slug-compiler]: Slug compilation failed: failed to detect set buildpack heroku/php 
2015-11-19T00:34:31.326385+00:00 heroku[slug-compiler]: More info: https://devcenter.heroku.com/articles/buildpacks#detection-failure 
2015-11-19T00:34:37.003934+00:00 heroku[slug-compiler]: Slug compilation started 
2015-11-19T00:34:37.003944+00:00 heroku[slug-compiler]: Slug compilation failed: failed to detect set buildpack heroku/php 
2015-11-19T00:34:37.003946+00:00 heroku[slug-compiler]: More info: https://devcenter.heroku.com/articles/buildpacks#detection-failure 

Answer 1

我发现了什么是错误的。在我的git repo中，我有一个单独的文件夹，其中包含可显示网站的所有html和php文件。一旦我将它们移动到主目录，heroku就能够检测到它是一个php应用程序。

Answer 2

就我而言，我需要在我的git文件夹所在的同一目录中有一个composer.json文件。还要确保你在尝试做之前在你的提交中包含了json文件git push heroku master。

我composer.json文件只包含这个所以这是一个有效的JSON。

{}