【发布时间】：2019-02-08 22:38:51
【问题描述】：
我第一次尝试将 django 应用程序安装到 Heroku。我一直在关注教程，在git push heroku master 之前一切都很顺利。我收到 postgrequl/psycopg2 错误：
Collecting psycopg2==2.6.2 (from -r /tmp/build_9a1b9401a05f6186e32ef1f993bdd183/requirements.txt (line 10))
remote: Downloading blah...blah../bc/psycopg2-2.6.2.tar.gz (376kB)
remote: Complete output from command python setup.py egg_info:
remote: running egg_info
remote: creating pip-egg-info/psycopg2.egg-info
remote: writing pip-egg-info/psycopg2.egg-info/PKG-INFO
remote: writing dependency_links to pip-egg-info/psycopg2.egg-info/dependency_links.txt
remote: writing top-level names to pip-egg-info/psycopg2.egg-info/top_level.txt
remote: writing manifest file 'pip-egg-info/psycopg2.egg-info/SOURCES.txt'
remote: Error: could not determine PostgreSQL version from '10.5'
remote:
remote: ----------------------------------------
remote: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-mu5yzi1s/psycopg2/
remote: ! Push rejected, failed to compile Python app.
remote:
remote: ! Push failed
remote: Verifying deploy...
remote:
remote: ! Push rejected to django-randomizer.
我进行了一些搜索，并阅读了其他人遇到问题的地方，因为他们使用的是旧版本的 psycopg2。所以我编辑了我的 requirements.txt 文件以包含psycopg2-2.7.5，这是最新的。我想再次尝试“git push heroku master”，我得到了同样的错误。错误引用 psycopg2-2.6.2。
我什至删除了我的应用程序并重新启动，但是当涉及到 git push 时，我得到了同样的错误。目前我认为 git 处于某种状态，它一直在尝试进行已经失败的推送。不过我不确定。有什么想法吗？
git reflog:
5fd142e (HEAD -> deployheroku, origin/deployheroku) HEAD@{0}: pull origin deployheroku: Fast-forward
df048a9 (origin/master, origin/HEAD, master) HEAD@{1}: reset: moving to HEAD^
5fd142e (HEAD -> deployheroku, origin/deployheroku) HEAD@{2}: commit: change settings and wsgi for heroku
df048a9 (origin/master, origin/HEAD, master) HEAD@{3}: checkout: moving from master to deployheroku
df048a9 (origin/master, origin/HEAD, master) HEAD@{4}: commit: restore local version
873d636 HEAD@{5}: commit: updated psycopg2 in requirements.txt
aebfe43 HEAD@{6}: commit: get files ready for heroku
6273553 HEAD@{7}: commit: removed old files
9b2c347 HEAD@{8}: commit: update with new app name
6b4103d HEAD@{9}: clone: from https://github.com/shmish/django-randomizer.git
我的 requirements.txt 是：
certifi==2018.8.13
chardet==3.0.4
defusedxml==0.5.0
Django==2.0.8
django-allauth==0.36.0
django-filter==2.0.0
docopt==0.6.2
idna==2.7
oauthlib==2.1.0
psycopg2==2.7.5
python-decouple==3.1
python3-openid==3.1.0
pytz==2018.5
requests==2.19.1
requests-oauthlib==1.0.0
urllib3==1.23
whitenoise==4.0
yarg==0.1.9
【问题讨论】：
-
我编辑了问题并包含了 requirements.txt
-
psycopg2==2.7.5在master或deployheroku中吗？我清楚地看到psycopg2==2.6.2。你能告诉我们git show master:requirements.txt | grep psycopg2和git show deployheroku:requirements.txt | grep psycopg2的结果吗？ -
$ git show deployheroku:requirements.txt | grep psycopg2 psycopg2==2.7.5 -
$ git show master:requirements.txt | grep psycopg2 psycopg2==2.6.2 -
你没有在部署中使用 dj-database-url 吗？我也会使用 psycopg2==2.7.1 并且不在 Heroku 上运行最新版本。为确保您的 requirements.txt 文件用于最近的部署尝试，请输入您对文件的更改，即 git add 。 git commit -m 'changes to requirements.txt' 最后是 git push heroku master。