Django不'；在templates/app目录中找不到模板

在我的一个项目中，正在搜索模板

<project_root>/<app>/templates/

这里是错误

> TemplateDoesNotExist at /printer_add printer_add.html Request
> Method:   GET Request URL:    http://127.0.0.1:8000/printer_add Django
> Version:  3.0.3 Exception Type:   TemplateDoesNotExist Exception Value:   
> printer_add.html Exception
> Location: /usr/local/lib/python3.6/site-packages/django/template/loader.py
> in select_template, line 47 Python Executable:    /usr/bin/python3 Python
> Version:  3.6.8 Python Path:   ['/opt/app/w_apps', 
> '/usr/lib64/python36.zip',  '/usr/lib64/python3.6', 
> '/usr/lib64/python3.6/lib-dynload', 
> '/usr/local/lib64/python3.6/site-packages', 
> '/usr/local/lib/python3.6/site-packages', 
> '/usr/lib64/python3.6/site-packages', 
> '/usr/lib/python3.6/site-packages',  '/opt/app/w_apps'] Server
> time: Fri, 13 Mar 2020 10:38:48 +0000 Template-loader postmortem
> Django tried loading these templates, in this order:
> 
> Using engine django:
> 
> django.template.loaders.app_directories.Loader:
> /usr/local/lib/python3.6/site-packages/django/contrib/admin/templates/printer_add.html
> (Source does not exist)
> django.template.loaders.app_directories.Loader:
> /usr/local/lib/python3.6/site-packages/django/contrib/auth/templates/printer_add.html
> (Source does not exist)
> django.template.loaders.app_directories.Loader:
> /opt/app/w_apps/sts/templates/printer_add.html (Source does not exist)

处理视图是

class PrinterCreate(CreateView):
    model = Printer
    form_class = PrinterCreateForm
    template_name = 'printer_add.html'
    success_url = reverse_lazy('printer_list')

---

您想在

/opt/app/w\u apps/sts/templates/sts/printer\u add.html

回溯显示它正在查看

/opt/app/w_apps/sts/templates

目录。这是因为您的

模板设置中有
'APP\u DIRS'：True

如果将模板位置拆分为两个，则会得到：

/opt/app/w_apps/sts/templates/sts/printer_add.html = /opt/app/w_apps/sts/templates/ + sts/printer_add.html

因此，您应该使用
sts/printer\u add.html
作为视图中的模板名称

class PrinterCreate(CreateView):
    ...
    template_name = 'sts/printer_add.html'

您尚未显示视图或错误消息。我怀疑在一个项目中，您有类似于
return（request，“my_template.html”）
的内容，而在另一个项目中，您有
return render（request，“app/my_template.html”）
。使用
app/my_template.html
的优点是，多个应用程序可以有一个名称相同的模板，而不会发生冲突。我刚刚更新了原始问题中的错误。好的，那么处理
/printer_add
的视图是什么？
printer\u add.html
template在哪里？它在/opt/app/w\u apps/sts/templates/sts/文件夹中。问题中的视图已更新。
/opt/app/w_apps/sts/templates/sts/printer_add.html = /opt/app/w_apps/sts/templates/ + sts/printer_add.html

class PrinterCreate(CreateView):
    ...
    template_name = 'sts/printer_add.html'