How to Solve Error Message django.template.exceptions.TemplateSyntaxError: Could not parse the remainder: ‘ ‘address” from ‘url ‘address” in Django Application

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Introduction

While running a Django-based application by accessing a certain URL address, there is an appearance of an error message. In short, the error message appear upon executing a certain command. That command is a command for running a Django-based internal service. After typing the command ‘python manage.py runserver’ to do that, there is an error message appear as follows : 

django.template.exceptions.TemplateSyntaxError: Could not parse the remainder: ' 'address'' from 'url 'address''

The error message above actually appear at the end of the command execution of running ‘python manage.py runserver’. The following is the actual execution of the command :

C:\python\programming\myproject> python manage.py runserver 
Performing system checks...
System check identified no issues (0 silenced).
October 19, 2021 - 16:42:38
Django version 3.2.6, using settings 'core.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.
Internal Server Error: /apps/
Traceback (most recent call last):
File "C:\app\python39\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
response = get_response(request)
File "C:\app\python39\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\python\programming\myproject\apps\views.py", line 6, in index
return render(request, "apps/index.html")
File "C:\app\python39\lib\site-packages\django\shortcuts.py", line 19, in render
content = loader.render_to_string(template_name, context, request, using=using)
File "C:\app\python39\lib\site-packages\django\template\loader.py", line 61, in render_to_string
template = get_template(template_name, using=using)
File "C:\app\python39\lib\site-packages\django\template\loader.py", line 15, in get_template
return engine.get_template(template_name)
File "C:\app\python39\lib\site-packages\django\template\backends\django.py", line 34, in get_template
return Template(self.engine.get_template(template_name), self)
File "C:\app\python39\lib\site-packages\django\template\engine.py", line 143, in get_template
template, origin = self.find_template(template_name)
File "C:\app\python39\lib\site-packages\django\template\engine.py", line 125, in find_template
template = loader.get_template(name, skip=skip)
File "C:\app\python39\lib\site-packages\django\template\loaders\base.py", line 29, in get_template
return Template(
File "C:\app\python39\lib\site-packages\django\template\base.py", line 155, in __init__
self.nodelist = self.compile_nodelist()
File "C:\app\python39\lib\site-packages\django\template\base.py", line 193, in compile_nodelist
return parser.parse()
File "C:\app\python39\lib\site-packages\django\template\base.py", line 478, in parse
raise self.error(token, e)
File "C:\app\python39\lib\site-packages\django\template\base.py", line 476, in parse
compiled_result = compile_func(self, token)
File "C:\app\python39\lib\site-packages\django\template\loader_tags.py", line 278, in do_extends
nodelist = parser.parse()
File "C:\app\python39\lib\site-packages\django\template\base.py", line 478, in parse
raise self.error(token, e)
File "C:\app\python39\lib\site-packages\django\template\base.py", line 476, in parse
compiled_result = compile_func(self, token)
File "C:\app\python39\lib\site-packages\django\template\loader_tags.py", line 216, in do_block
nodelist = parser.parse(('endblock',))
File "C:\app\python39\lib\site-packages\django\template\base.py", line 449, in parse
raise self.error(token, e)
File "C:\app\python39\lib\site-packages\django\template\base.py", line 447, in parse
filter_expression = self.compile_filter(token.contents)
File "C:\app\python39\lib\site-packages\django\template\base.py", line 563, in compile_filter
return FilterExpression(token, self)
File "C:\app\python39\lib\site-packages\django\template\base.py", line 662, in __init__
raise TemplateSyntaxError("Could not parse the remainder: '%s' "
django.template.exceptions.TemplateSyntaxError: Could not parse the remainder: ' 'structure'' from 'url 'structure''
[19/Oct/2021 16:43:09] "GET /apps/ HTTP/1.1" 500 160830

Solution

For solving the problem, there is a solution which is actually simple. The reason is because the trigger of the error message is just a miss-typed mistake. That mistake is because of the false format on defining an URL address in the template file. In this context, it is a template file as in the above output : 

File "C:\python\programming\myproject\apps\views.py", line 6, in index
return render(request, "apps/index.html")

Just check the index.html file containing the url ‘structure’. After searching in it, there is a miss-typed mistake found on defining the URL. That URL definition in the index.html causing the error message exist as follows : 

django.template.exceptions.TemplateSyntaxError: Could not parse the remainder: ' 'structure'' from 'url 'structure''

What is the actual URL definition in the index.html which is causing the error message ?. The following is that actual URL definition in the index.html : 

<li class="nav-item">
          <a class="nav-link active" aria-current="page" href="{{ url 'structure' }}">Organization Structure</a>
          {{ structure }}
</li>

The above URL definition actually has a false format or miss-typed which is triggering the error message. This is how the URL definition should have be defined to solve the problem : 

<li class="nav-item">
          <a class="nav-link active" aria-current="page" href="{% url 'structure' %}">Organization Structure</a>
          {{ structure }}
</li>

So, execute and access the page once more. If there are no further error messages appear, the page will render properly.

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