运行Django项目时遇TemplateDoesNotExist错误：无法找到index.html

我尝试了多种已找到的解决方案，但均未解决问题。以下是相关配置信息：

urls.py文件 #

from django.contrib import admin
from django.urls import path
from django.views.generic import TemplateView
from django.conf.urls import include
admin.site.site_header = 'Marked By Covid Admin'


urlpatterns = [
    path('grappelli/', include('grappelli.urls')),
    path('admin/', admin.site.urls),
    path('', TemplateView.as_view(template_name='index.html'), name='index'),
]

settings.py中的TEMPLATES配置 #

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'client-app/dist')],

        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

项目结构截图：

若需要其他信息请告知，恳请各位帮忙排查问题，谢谢！

内容的提问来源于stack exchange，提问作者Ziv