如何解决 django 错误：raise TemplateDoesNotExist(', '.join(template_name_list), chain=chain)

Question

我正在使用 Django 3+...

我正在尝试在我的页面上呈现博客模板，但收到错误消息：

Internal Server Error: /postsblog
Traceback (most recent call last):
  File "D:\Projetos Dev\gpprofessional\.venv\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "D:\Projetos Dev\gpprofessional\.venv\lib\site-packages\django\core\handlers\base.py", line 145, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "D:\Projetos Dev\gpprofessional\.venv\lib\site-packages\django\core\handlers\base.py", line 143, in _get_response
    response = response.render()
  File "D:\Projetos Dev\gpprofessional\.venv\lib\site-packages\django\template\response.py", line 105, in render
    self.content = self.rendered_content
  File "D:\Projetos Dev\gpprofessional\.venv\lib\site-packages\django\template\response.py", line 81, in rendered_content
    template = self.resolve_template(self.template_name)
  File "D:\Projetos Dev\gpprofessional\.venv\lib\site-packages\django\template\response.py", line 63, in resolve_template
    return select_template(template, using=self.using)
  File "D:\Projetos Dev\gpprofessional\.venv\lib\site-packages\django\template\loader.py", line 47, in select_template
    raise TemplateDoesNotExist(', '.join(template_name_list), chain=chain)
django.template.exceptions.TemplateDoesNotExist: posts/blog.html, posts/post_list.html
[13/May/2020 22:57:09] "GET /postsblog HTTP/1.1" 500 93437

当我尝试访问博客 URL 时出现此错误。

我的项目中有一些应用程序，例如应用程序库、应用程序帖子、应用程序博客和应用程序类别

我的目录文件如下图：

我在应用程序库中的文件： 网址

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', views.home, name='home'),
    path('posts', include('posts.urls')),
    path('summernote/', include('django_summernote.urls'))
]

if settings.DEBUG:
    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

观看次数

from django.shortcuts import render
from django.views.generic.list import ListView
from django.views.generic.edit import UpdateView


def home(request):
    return render(request, 'home.html')

我在应用帖子中的文件： 网址

from django.urls import path
from . import views


urlpatterns = [
    path('blog', views.PostIndex.as_view(), name='post_blog'),
    path('categoria/<str:categoria>', views.PostCategoria.as_view(), name='post_categoria'),
    path('busca/', views.PostBusca.as_view(), name='post_busca'),
    path('post/<int:pk>', views.PostDetalhes.as_view(), name='post_detalhes'),
]

观看次数

from django.shortcuts import render
from django.views.generic.list import ListView
from django.views.generic.edit import UpdateView
from .models import Post


class PostIndex(ListView):
    model = Post
    template_name = 'posts/blog.html'


class PostBusca(PostIndex):
    pass


class PostCategoria(PostIndex):
    pass


class PostDetalhes(UpdateView):
    pass

我在 TEMPLATES 和 INSTALLED_APPS 配置中的文件设置如下：

模板

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

ISTALLED_APPS

INSTALLED_APPS = [
    'posts',
    'categorias',
    'comentarios',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'collectfast',
    'django.contrib.staticfiles',
    'base',
    'blog',
]

我尝试使用所有模板的唯一文件夹，但出现错误。我认为错误在 URL 基本文件中，但我不知道如何解决它。我在谷歌上进行了一些搜索，但没有成功......

Answer 1

考虑到模板加载器会遍历所有应用程序中的模板，因此您无需在模板名称前面添加应用程序，因此在您的情况下

template_name = 'blog.html'