User matching query does not exist.

[Shilpa Agrawal]

Environment:

Request Method: GET

Request URL: http://127.0.0.1:8000/addToCart/1

Django Version: 3.2.3

Python Version: 3.9.1

Installed Applications:

['django.contrib.admin',

 'django.contrib.auth',

 'django.contrib.contenttypes',

 'django.contrib.sessions',

 'django.contrib.messages',

 'django.contrib.staticfiles',

 'MusicalApp.apps.MusicalappConfig',

 'CartApp.apps.CartappConfig']

Installed Middleware:

['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']

Traceback (most recent call last):

  File "D:\DjangoDemos\venv\lib\site-packages\django\core\handlers\exception.py", line 47, in inner

    response = get_response(request)

  File "D:\DjangoDemos\venv\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response

    response = wrapped_callback(request, *callback_args, **callback_kwargs)

  File "D:\DjangoDemos\CartApp\views.py", line 15, in addToCart

    user = User.objects.get(id=uid)

  File "D:\DjangoDemos\venv\lib\site-packages\django\db\models\manager.py", line 85, in manager_method

    return getattr(self.get_queryset(), name)(*args, **kwargs)

  File "D:\DjangoDemos\venv\lib\site-packages\django\db\models\query.py", line 435, in get

    raise self.model.DoesNotExist(

Exception Type: DoesNotExist at /addToCart/1

Exception Value: User matching query does not exist.

[Nikeet NA]

There is no user with id 1.

Wrap this statement inside try catch block :
   user = User.objects.get(id=uid)

   and catch the DoesNotExist exception as except User.DoesNotExist:

[sachinbg sachin]

It means that the data which you are looking for is not exists in that data base, check properly wether the searching data is exists or not, 

Thank you

Sachin b.g

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[Nicholas Bartlett]

Hi all, I have a similar issue on my DB. 

Internal Server Error: /ms_app/customers/19

Traceback (most recent call last):

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/core/handlers/exception.py", line 47, in inner

    response = get_response(request)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/core/handlers/base.py", line 204, in _get_response

    response = response.render()

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/response.py", line 105, in render

    self.content = self.rendered_content

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/response.py", line 83, in rendered_content

    return template.render(context, self._request)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/backends/django.py", line 61, in render

    return self.template.render(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/base.py", line 170, in render

    return self._render(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/base.py", line 162, in _render

    return self.nodelist.render(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/base.py", line 938, in render

    bit = node.render_annotated(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/base.py", line 905, in render_annotated

    return self.render(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/loader_tags.py", line 150, in render

    return compiled_parent._render(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/base.py", line 162, in _render

    return self.nodelist.render(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/base.py", line 938, in render

    bit = node.render_annotated(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/base.py", line 905, in render_annotated

    return self.render(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/loader_tags.py", line 62, in render

    result = block.nodelist.render(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/base.py", line 938, in render

    bit = node.render_annotated(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/base.py", line 905, in render_annotated

    return self.render(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/defaulttags.py", line 211, in render

    nodelist.append(node.render_annotated(context))

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/base.py", line 905, in render_annotated

    return self.render(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/defaulttags.py", line 305, in render

    match = condition.eval(context)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/defaulttags.py", line 889, in eval

    return self.value.resolve(context, ignore_failures=True)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/template/base.py", line 698, in resolve

    new_obj = func(obj, *arg_vals)

  File "/Users/nicholasbartlett/Documents/Dashboard/MSNDashboard/msCentral/mscentral_project/ms_app/templatetags/custom_tags.py", line 8, in is_group

    group = Group.objects.get(name=group_name)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/db/models/manager.py", line 85, in manager_method

    return getattr(self.get_queryset(), name)(*args, **kwargs)

  File "/Users/nicholasbartlett/Documents/Dashboard/djangodash/djenv/lib/python3.8/site-packages/django/db/models/query.py", line 435, in get

    raise self.model.DoesNotExist(

django.contrib.auth.models.Group.DoesNotExist: Group matching query does not exist.

[18/Oct/2021 09:40:29] "GET /ms_app/customers/19 HTTP/1.1" 500 182022

The group is accessible from the admin page but not the main page. 

I get the customer information from the below url. 

http://localhost/admin/ms_app/customerinfo/19/change/

Then there is site information link is this customer which I can access via the admin page as well. 

I am not sure what I should do to correct this. 

I ran migration and makemigrations app_name and there are no migrations to apply. 

I believe there is a mismatch on my DB but I do not know how to fix it.

I am running python3.8 with Django 3.2.5. with a SQLLite DB.