メモ。
Django アプリケーションをローカルで実行したらこんなエラーが出た。
(確認した PC は Mac OS X Yosemite v10.10.5)
(venv)$ heroku local web forego | starting web.1 on port 5000 web.1 | [2015-12-13 12:57:53 +0900] [2925] [INFO] Starting gunicorn 19.3.0 web.1 | [2015-12-13 12:57:53 +0900] [2925] [INFO] Listening at: http://0.0.0.0:5000 (2925) web.1 | [2015-12-13 12:57:53 +0900] [2925] [INFO] Using worker: sync web.1 | [2015-12-13 12:57:53 +0900] [2928] [INFO] Booting worker with pid: 2928 web.1 | [2015-12-13 12:57:54 +0900] [2928] [ERROR] Exception in worker process: web.1 | eroku/python_getting_started/venv/lib/python2.7/site-packages/gunicorn/util.py", line 355, in import_app web.1 | ad_wsgiapp() web.1 | [2015-12-13 12:57:54 +0900] [2928] [INFO] Worker exiting (pid: 2928) web.1 | [2015-12-13 12:57:54 +0900] [2925] [INFO] Shutting down: Master web.1 | [2015-12-13 12:57:54 +0900] [2925] [INFO] Reason: Worker failed to boot.
これだけだとよくわからないのでただの Django アプリとして実行してみる。
(venv)$ python manage.py runserver Traceback (most recent call last): File "manage.py", line 10, in <module> execute_from_command_line(sys.argv) File "/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line utility.execute() File "/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/django/core/management/__init__.py", line 312, in execute django.setup() File "/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/django/__init__.py", line 18, in setup apps.populate(settings.INSTALLED_APPS) File "/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/django/apps/registry.py", line 108, in populate app_config.import_models(all_models) File "/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/django/apps/config.py", line 198, in import_models self.models_module = import_module(models_module_name) File "/Users/yamazaki/.pyenv/versions/2.7.10/lib/python2.7/importlib/__init__.py", line 37, in import_module __import__(name) File "/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/django/contrib/auth/models.py", line 41, in <module> class Permission(models.Model): File "/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/django/db/models/base.py", line 139, in __new__ new_class.add_to_class('_meta', Options(meta, **kwargs)) File "/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/django/db/models/base.py", line 324, in add_to_class value.contribute_to_class(cls, name) File "/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/django/db/models/options.py", line 250, in contribute_to_class self.db_table = truncate_name(self.db_table, connection.ops.max_name_length()) File "/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/django/db/__init__.py", line 36, in __getattr__ return getattr(connections[DEFAULT_DB_ALIAS], item) File "/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/django/db/utils.py", line 240, in __getitem__ backend = load_backend(db['ENGINE']) File "/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/django/db/utils.py", line 129, in load_backend raise ImproperlyConfigured(error_msg) django.core.exceptions.ImproperlyConfigured: 'django_postgrespool' isn't an available database backend. Try using 'django.db.backends.XXX', where XXX is one of: u'base', u'mysql', u'oracle', u'postgresql_psycopg2', u'sqlite3' Error was: dlopen(/Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/psycopg2/_psycopg.so, 2): Symbol not found: _lo_lseek64 Referenced from: /Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/psycopg2/_psycopg.so Expected in: /usr/lib/libpq.5.dylib in /Users/yamazaki/workspace/heroku/python_getting_started/venv/lib/python2.7/site-packages/psycopg2/_psycopg.so
んーなんか libpq.5.dylib
とかいうファイルでエラーになってる。。。
調べてみて、結局こちらにある方法で解決した。
python - Problems using psycopg2 on Mac OS (Yosemite) - Stack Overflow
以下のコマンドを実行。
$ sudo mv /usr/lib/libpq.5.dylib /usr/lib/libpq.5.dylib.old $ sudo ln -s /Applications/Postgres.app/Contents/Versions/9.4/lib/libpq.5.dylib /usr/lib
元々の /usr/lib/libpq.5.dylib
が古いから Postgres.app に同梱されている方に置き換えるみたい。
Homebrew から Postgres 入れた時は発生しなかったはず。