如何修復 [Errno 20] 不是目錄：'/app/myProjectManager/settings.py/staticfiles/staticfiles.json' Django

Question

我正在嘗試將項目經理應用程序部署到 heroku。 它正在本地運行。 我正在按照教程https://www.codementor.io/@jamesezechukwu/how-to-deploy-django-app-on-heroku-dtsee04d4部署我的應用程序。 我不知道錯誤在哪里以及如何修復，所以希望您能提供幫助。 NotADirectoryError at / ，說[Errno 20] Not a directory: '/app/myProjectManager/settings.py/staticfiles/staticfiles.json' NotADirectoryError at / [Errno 20] Not a directory: '/app/myProjectManager/settings.py/staticfiles/staticfiles.json'

這是我的一些后端代碼：

MIDDLEWARE = [
    'whitenoise.middleware.WhiteNoiseMiddleware',
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.11/howto/static-files/
PROJECT_ROOT   =   os.path.join(os.path.abspath(__file__))
STATIC_ROOT  =   os.path.join(PROJECT_ROOT, 'staticfiles')
STATIC_URL = '/static/'

# Extra lookup directories for collectstatic to find static files
STATICFILES_DIRS = (
    os.path.join(PROJECT_ROOT, 'static'),
)

#  Add configuration for static files storage using whitenoise
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'

import dj_database_url 
prod_db  =  dj_database_url.config(conn_max_age=500)
DATABASES['default'].update(prod_db)

我無法成功鏈接到靜態文件。 這是我的 html 模板代碼的錯誤部分： Error during template rendering

<link
    rel="stylesheet"
    type="text/css"
    href="{% static 'projectManager/style.css' %}"
  />

我的意見.py：

def home(request):
    return render(request, 'projectManager/home.html', {'projects': Project.objects.all()})

我的models.py：

class Project(models.Model):
    title = models.CharField(max_length=100)
    date = models.DateTimeField(auto_now_add=timezone.now())

    def __str__(self):
        return self.title

Answer 1

[Errno 20] 不是目錄：'/app/myProjectManager/settings.py/staticfiles/staticfiles.json'

罪魁禍首是：

PROJECT_ROOT = os.path.join(os.path.abspath(__file__))
# That means:
#     PROJECT_ROOT = '/app/myProjectManager/settings.py/'
# And:
#     STATIC_ROOT: '/app/myProjectManager/settings.py/staticfiles/'
# which is incorrect

---

如果staticfiles在app ，則將其更改為：

PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
# That means:
#     PROJECT_ROOT: '/app/'
# And:
#     STATIC_ROOT: '/app/staticfiles/'
# Which is correct.

---

您需要根據settings.py與項目根目錄相比的位置更新PROJECT_ROOT 。