Program matching query does not exist.
Request Method: | GET |
---|---|
Request URL: | https://decodeschool.com/C-Programming/Operators/C-Program-to-convert--kilobytes-to-bytes |
Django Version: | 4.2.6 |
Exception Type: | DoesNotExist |
Exception Value: | Program matching query does not exist. |
Exception Location: | /var/www/decoder/lib/python3.11/site-packages/django/db/models/query.py, line 637, in get |
Raised during: | example_app.views.program_detail |
Python Executable: | /var/www/decoder/bin/python3 |
Python Version: | 3.11.4 |
Python Path: | ['/var/www/decodeschool', '/var/www/decoder/bin', '/usr/lib/python311.zip', '/usr/lib/python3.11', '/usr/lib/python3.11/lib-dynload', '/var/www/decoder/lib/python3.11/site-packages', '/var/www/decoder/lib/python3.11/site-packages/odf', '/var/www/decoder/lib/python3.11/site-packages/odf', '/var/www/decoder/lib/python3.11/site-packages/odf', '/var/www/decoder/lib/python3.11/site-packages/odf', '/var/www/decoder/lib/python3.11/site-packages/odf', '/var/www/decoder/lib/python3.11/site-packages/odf', '/var/www/decoder/lib/python3.11/site-packages/odf'] |
Server time: | Thu, 28 Mar 2024 23:00:32 +0000 |
/var/www/decoder/lib/python3.11/site-packages/django/core/handlers/exception.py
, line 55, in inner
return inner
else:
@wraps(get_response)
def inner(request):
try:
response = get_response(request) ^^^^^^^^^^^^^^^^^^^^^…
except Exception as exc:
response = response_for_exception(request, exc)
return response
return inner
Variable | Value |
---|---|
exc | DoesNotExist('Program matching query does not exist.') |
get_response | <bound method BaseHandler._get_response of <django.core.handlers.wsgi.WSGIHandler object at 0x7f65e8405050>> |
request | <WSGIRequest: GET '/C-Programming/Operators/C-Program-to-convert--kilobytes-to-bytes'> |
/var/www/decoder/lib/python3.11/site-packages/django/core/handlers/base.py
, line 197, in _get_response
if response is None:
wrapped_callback = self.make_view_atomic(callback)
# If it is an asynchronous view, run it in a subthread.
if iscoroutinefunction(wrapped_callback):
wrapped_callback = async_to_sync(wrapped_callback)
try:
response = wrapped_callback(request, *callback_args, **callback_kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^…
except Exception as e:
response = self.process_exception_by_middleware(e, request)
if response is None:
raise
# Complain if the view returned None (a common error).
Variable | Value |
---|---|
callback | <function program_detail at 0x7f65e7d7fb00> |
callback_args | () |
callback_kwargs | {'chapter': 'Operators', 'course': 'C-Programming', 'program': 'C-Program-to-convert--kilobytes-to-bytes'} |
middleware_method | <bound method CsrfViewMiddleware.process_view of <CsrfViewMiddleware get_response=convert_exception_to_response.<locals>.inner>> |
request | <WSGIRequest: GET '/C-Programming/Operators/C-Program-to-convert--kilobytes-to-bytes'> |
response | None |
self | <django.core.handlers.wsgi.WSGIHandler object at 0x7f65e8405050> |
wrapped_callback | <function program_detail at 0x7f65e7d7fb00> |
/var/www/decodeschool/example_app/views.py
, line 108, in program_detail
course = Course.objects.get(slug=course)
return render(request, 'decodeschool/chapter.html',{'course':course,'chapter':chapter,'courses':courses,'blogs':blogs})
def program_detail(request,course,chapter,program):
courses = Course.objects.all()
blogs = Blog.objects.all()
program = Program.objects.get(slug=program,chapter__slug=chapter,chapter__course__slug=course) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^…
next_prog = Program.objects.filter(chapter__course__slug=course, id__gt=program.id).order_by('id').first()
prev_prog = Program.objects.filter(chapter__course__slug=course, id__lt=program.id).order_by('-id').first()
message = ""
if request.method == 'POST':
if request.user.is_authenticated:
c_form = CommentForm_P(request.POST)
Variable | Value |
---|---|
blogs | <QuerySet [<Blog: Text Mining>, <Blog: Python Tutorial>, <Blog: OOPS in Java>, <Blog: Database Management>, <Blog: Operating Systems>]> |
chapter | 'Operators' |
course | 'C-Programming' |
courses | <QuerySet [<Course: C Programming>, <Course: Logic Building in C>, <Course: Python Programming>, <Course: Java Programming>, <Course: Python Logic Building>, <Course: Problem Solving using Java>]> |
program | 'C-Program-to-convert--kilobytes-to-bytes' |
request | <WSGIRequest: GET '/C-Programming/Operators/C-Program-to-convert--kilobytes-to-bytes'> |
/var/www/decoder/lib/python3.11/site-packages/django/db/models/manager.py
, line 87, in manager_method
return []
@classmethod
def _get_queryset_methods(cls, queryset_class):
def create_method(name, method):
@wraps(method)
def manager_method(self, *args, **kwargs):
return getattr(self.get_queryset(), name)(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^…
return manager_method
new_methods = {}
for name, method in inspect.getmembers(
queryset_class, predicate=inspect.isfunction
Variable | Value |
---|---|
args | () |
kwargs | {'chapter__course__slug': 'C-Programming', 'chapter__slug': 'Operators', 'slug': 'C-Program-to-convert--kilobytes-to-bytes'} |
name | 'get' |
self | <django.db.models.manager.Manager object at 0x7f65e4cadb10> |
/var/www/decoder/lib/python3.11/site-packages/django/db/models/query.py
, line 637, in get
):
limit = MAX_GET_RESULTS
clone.query.set_limits(high=limit)
num = len(clone)
if num == 1:
return clone._result_cache[0]
if not num:
raise self.model.DoesNotExist( ^…
"%s matching query does not exist." % self.model._meta.object_name
)
raise self.model.MultipleObjectsReturned(
"get() returned more than one %s -- it returned %s!"
% (
self.model._meta.object_name,
Variable | Value |
---|---|
args | () |
clone | <QuerySet []> |
kwargs | {'chapter__course__slug': 'C-Programming', 'chapter__slug': 'Operators', 'slug': 'C-Program-to-convert--kilobytes-to-bytes'} |
limit | 21 |
num | 0 |
self | <QuerySet [<Program: C Program to Print Welcome>, <Program: C Program to Print the given Message>, <Program: C Program to Print the given word>, <Program: C Program to print the given integer number>, <Program: C Program to print the given fractional number>, <Program: C Program to print the given fractional number in 2 digit decimal format>, <Program: C Program to print given integer number in Hexadecimal format>, <Program: C Program to print given integer number in octal format>, <Program: C Program to print given hexadecimal number in integer format>, <Program: C Program to print given octal number in integer format>, <Program: C Program to print the ASCII value of a character>, <Program: C Program to print the character for given ASCII value>, <Program: C Program to print two numbers with a space between them>, <Program: C Program to print two numbers with a tab space between them>, <Program: C Program to print two numbers in two lines>, <Program: C Program to Addition of two numbers>, <Program: C Program to subtraction of two numbers>, <Program: C Program to multiply two numbers>, <Program: C Program to divide two numbers>, <Program: C Program to find modulus of two numbers>, '...(remaining elements truncated)...']> |
AnonymousUser
No GET data
No POST data
No FILES data
No cookie data
Variable | Value |
---|---|
HTTP_ACCEPT | '*/*' |
HTTP_CONNECTION | 'close' |
HTTP_HOST | 'decodeschool.com' |
HTTP_REFERER | 'http://www.decodeschool.com/C-Programming/Operators/C-Program-to-convert--kilobytes-to-bytes' |
HTTP_USER_AGENT | 'claudebot' |
HTTP_X_FORWARDED_FOR | '3.235.139.122' |
HTTP_X_FORWARDED_PROTO | 'https' |
HTTP_X_REAL_IP | '3.235.139.122' |
PATH_INFO | '/C-Programming/Operators/C-Program-to-convert--kilobytes-to-bytes' |
QUERY_STRING | '' |
RAW_URI | '/C-Programming/Operators/C-Program-to-convert--kilobytes-to-bytes' |
REMOTE_ADDR | '' |
REQUEST_METHOD | 'GET' |
SCRIPT_NAME | '' |
SERVER_NAME | 'decodeschool.com' |
SERVER_PORT | '443' |
SERVER_PROTOCOL | 'HTTP/1.0' |
SERVER_SOFTWARE | 'gunicorn/21.2.0' |
gunicorn.socket | <socket.socket fd=9, family=1, type=1, proto=0, laddr=/var/www/decodeschool/decodeschool.sock> |
wsgi.errors | <gunicorn.http.wsgi.WSGIErrorsWrapper object at 0x7f65e4807ac0> |
wsgi.file_wrapper | <class 'gunicorn.http.wsgi.FileWrapper'> |
wsgi.input | <gunicorn.http.body.Body object at 0x7f65e4a1e390> |
wsgi.input_terminated | True |
wsgi.multiprocess | True |
wsgi.multithread | False |
wsgi.run_once | False |
wsgi.url_scheme | 'https' |
wsgi.version | (1, 0) |
decodeschool.settings
Setting | Value |
---|---|
ABSOLUTE_URL_OVERRIDES | {} |
ADMINS | [] |
ALLOWED_HOSTS | ['decodeschool.com', 'www.decodeschool.com'] |
APPEND_SLASH | True |
AUTHENTICATION_BACKENDS | ['django.contrib.auth.backends.ModelBackend'] |
AUTH_PASSWORD_VALIDATORS | '********************' |
AUTH_USER_MODEL | 'auth.User' |
BASE_DIR | '/var/www/decodeschool' |
CACHES | {'default': {'BACKEND': 'django.core.cache.backends.locmem.LocMemCache'}} |
CACHE_MIDDLEWARE_ALIAS | 'default' |
CACHE_MIDDLEWARE_KEY_PREFIX | '********************' |
CACHE_MIDDLEWARE_SECONDS | 600 |
CRISPY_TEMPLATE_PACK | 'bootstrap3' |
CSRF_COOKIE_AGE | 31449600 |
CSRF_COOKIE_DOMAIN | None |
CSRF_COOKIE_HTTPONLY | False |
CSRF_COOKIE_MASKED | False |
CSRF_COOKIE_NAME | 'csrftoken' |
CSRF_COOKIE_PATH | '/' |
CSRF_COOKIE_SAMESITE | 'Lax' |
CSRF_COOKIE_SECURE | False |
CSRF_FAILURE_VIEW | 'django.views.csrf.csrf_failure' |
CSRF_HEADER_NAME | 'HTTP_X_CSRFTOKEN' |
CSRF_TRUSTED_ORIGINS | [] |
CSRF_USE_SESSIONS | False |
DATABASES | {'default': {'ATOMIC_REQUESTS': False, 'AUTOCOMMIT': True, 'CONN_HEALTH_CHECKS': False, 'CONN_MAX_AGE': 0, 'ENGINE': 'django.db.backends.mysql', 'HOST': 'localhost', 'NAME': 'decodeschool', 'OPTIONS': {'init_command': "SET sql_mode='STRICT_TRANS_TABLES'"}, 'PASSWORD': '********************', 'PORT': '', 'TEST': {'CHARSET': None, 'COLLATION': None, 'MIGRATE': True, 'MIRROR': None, 'NAME': None}, 'TIME_ZONE': None, 'USER': 'root'}} |
DATABASE_ROUTERS | [] |
DATA_UPLOAD_MAX_MEMORY_SIZE | 2621440 |
DATA_UPLOAD_MAX_NUMBER_FIELDS | 1000 |
DATA_UPLOAD_MAX_NUMBER_FILES | 100 |
DATETIME_FORMAT | 'N j, Y, P' |
DATETIME_INPUT_FORMATS | ['%Y-%m-%d %H:%M:%S', '%Y-%m-%d %H:%M:%S.%f', '%Y-%m-%d %H:%M', '%m/%d/%Y %H:%M:%S', '%m/%d/%Y %H:%M:%S.%f', '%m/%d/%Y %H:%M', '%m/%d/%y %H:%M:%S', '%m/%d/%y %H:%M:%S.%f', '%m/%d/%y %H:%M'] |
DATE_FORMAT | 'N j, Y' |
DATE_INPUT_FORMATS | ['%Y-%m-%d', '%m/%d/%Y', '%m/%d/%y', '%b %d %Y', '%b %d, %Y', '%d %b %Y', '%d %b, %Y', '%B %d %Y', '%B %d, %Y', '%d %B %Y', '%d %B, %Y'] |
DEBUG | True |
DEBUG_PROPAGATE_EXCEPTIONS | False |
DECIMAL_SEPARATOR | '.' |
DEFAULT_AUTO_FIELD | 'django.db.models.AutoField' |
DEFAULT_CHARSET | 'utf-8' |
DEFAULT_EXCEPTION_REPORTER | 'django.views.debug.ExceptionReporter' |
DEFAULT_EXCEPTION_REPORTER_FILTER | 'django.views.debug.SafeExceptionReporterFilter' |
DEFAULT_FILE_STORAGE | 'django.core.files.storage.FileSystemStorage' |
DEFAULT_FROM_EMAIL | 'webmaster@localhost' |
DEFAULT_INDEX_TABLESPACE | '' |
DEFAULT_TABLESPACE | '' |
DISALLOWED_USER_AGENTS | [] |
EMAIL_BACKEND | 'django.core.mail.backends.smtp.EmailBackend' |
EMAIL_HOST | 'mail.supremecluster.com' |
EMAIL_HOST_PASSWORD | '********************' |
EMAIL_HOST_USER | 'admin@decodeschool.com' |
EMAIL_PORT | 465 |
EMAIL_SSL_CERTFILE | None |
EMAIL_SSL_KEYFILE | '********************' |
EMAIL_SUBJECT_PREFIX | '[Django] ' |
EMAIL_TIMEOUT | None |
EMAIL_USE_LOCALTIME | False |
EMAIL_USE_SSL | True |
EMAIL_USE_TLS | False |
FILE_UPLOAD_DIRECTORY_PERMISSIONS | None |
FILE_UPLOAD_HANDLERS | ['django.core.files.uploadhandler.MemoryFileUploadHandler', 'django.core.files.uploadhandler.TemporaryFileUploadHandler'] |
FILE_UPLOAD_MAX_MEMORY_SIZE | 2621440 |
FILE_UPLOAD_PERMISSIONS | 420 |
FILE_UPLOAD_TEMP_DIR | None |
FIRST_DAY_OF_WEEK | 0 |
FIXTURE_DIRS | [] |
FORCE_SCRIPT_NAME | None |
FORMAT_MODULE_PATH | None |
FORM_RENDERER | 'django.forms.renderers.DjangoTemplates' |
IGNORABLE_404_URLS | [] |
INSTALLED_APPS | ['crispy_forms', 'crispy_bootstrap3', 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'example_app', 'external', 'track', 'django_summernote', 'django.contrib.sites', 'sorl.thumbnail', 'graphene_django'] |
INTERNAL_IPS | [] |
LANGUAGES | [('af', 'Afrikaans'), ('ar', 'Arabic'), ('ar-dz', 'Algerian Arabic'), ('ast', 'Asturian'), ('az', 'Azerbaijani'), ('bg', 'Bulgarian'), ('be', 'Belarusian'), ('bn', 'Bengali'), ('br', 'Breton'), ('bs', 'Bosnian'), ('ca', 'Catalan'), ('ckb', 'Central Kurdish (Sorani)'), ('cs', 'Czech'), ('cy', 'Welsh'), ('da', 'Danish'), ('de', 'German'), ('dsb', 'Lower Sorbian'), ('el', 'Greek'), ('en', 'English'), ('en-au', 'Australian English'), ('en-gb', 'British English'), ('eo', 'Esperanto'), ('es', 'Spanish'), ('es-ar', 'Argentinian Spanish'), ('es-co', 'Colombian Spanish'), ('es-mx', 'Mexican Spanish'), ('es-ni', 'Nicaraguan Spanish'), ('es-ve', 'Venezuelan Spanish'), ('et', 'Estonian'), ('eu', 'Basque'), ('fa', 'Persian'), ('fi', 'Finnish'), ('fr', 'French'), ('fy', 'Frisian'), ('ga', 'Irish'), ('gd', 'Scottish Gaelic'), ('gl', 'Galician'), ('he', 'Hebrew'), ('hi', 'Hindi'), ('hr', 'Croatian'), ('hsb', 'Upper Sorbian'), ('hu', 'Hungarian'), ('hy', 'Armenian'), ('ia', 'Interlingua'), ('id', 'Indonesian'), ('ig', 'Igbo'), ('io', 'Ido'), ('is', 'Icelandic'), ('it', 'Italian'), ('ja', 'Japanese'), ('ka', 'Georgian'), ('kab', 'Kabyle'), ('kk', 'Kazakh'), ('km', 'Khmer'), ('kn', 'Kannada'), ('ko', 'Korean'), ('ky', 'Kyrgyz'), ('lb', 'Luxembourgish'), ('lt', 'Lithuanian'), ('lv', 'Latvian'), ('mk', 'Macedonian'), ('ml', 'Malayalam'), ('mn', 'Mongolian'), ('mr', 'Marathi'), ('ms', 'Malay'), ('my', 'Burmese'), ('nb', 'Norwegian Bokmål'), ('ne', 'Nepali'), ('nl', 'Dutch'), ('nn', 'Norwegian Nynorsk'), ('os', 'Ossetic'), ('pa', 'Punjabi'), ('pl', 'Polish'), ('pt', 'Portuguese'), ('pt-br', 'Brazilian Portuguese'), ('ro', 'Romanian'), ('ru', 'Russian'), ('sk', 'Slovak'), ('sl', 'Slovenian'), ('sq', 'Albanian'), ('sr', 'Serbian'), ('sr-latn', 'Serbian Latin'), ('sv', 'Swedish'), ('sw', 'Swahili'), ('ta', 'Tamil'), ('te', 'Telugu'), ('tg', 'Tajik'), ('th', 'Thai'), ('tk', 'Turkmen'), ('tr', 'Turkish'), ('tt', 'Tatar'), ('udm', 'Udmurt'), ('uk', 'Ukrainian'), ('ur', 'Urdu'), ('uz', 'Uzbek'), ('vi', 'Vietnamese'), ('zh-hans', 'Simplified Chinese'), ('zh-hant', 'Traditional Chinese')] |
LANGUAGES_BIDI | ['he', 'ar', 'ar-dz', 'ckb', 'fa', 'ur'] |
LANGUAGE_CODE | 'en-us' |
LANGUAGE_COOKIE_AGE | None |
LANGUAGE_COOKIE_DOMAIN | None |
LANGUAGE_COOKIE_HTTPONLY | False |
LANGUAGE_COOKIE_NAME | 'django_language' |
LANGUAGE_COOKIE_PATH | '/' |
LANGUAGE_COOKIE_SAMESITE | None |
LANGUAGE_COOKIE_SECURE | False |
LOCALE_PATHS | [] |
LOGGING | {} |
LOGGING_CONFIG | 'logging.config.dictConfig' |
LOGIN_REDIRECT_URL | 'home' |
LOGIN_URL | '/accounts/login/' |
LOGOUT_REDIRECT_URL | 'home' |
MANAGERS | [] |
MEDIA_ROOT | '/var/www/decodeschool/media/' |
MEDIA_URL | '/media/' |
MESSAGE_STORAGE | 'django.contrib.messages.storage.fallback.FallbackStorage' |
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'] |
MIGRATION_MODULES | {} |
MONTH_DAY_FORMAT | 'F j' |
NUMBER_GROUPING | 0 |
PASSWORD_HASHERS | '********************' |
PASSWORD_RESET_TIMEOUT | '********************' |
PREPEND_WWW | False |
ROOT_URLCONF | 'decodeschool.urls' |
SECRET_KEY | '********************' |
SECRET_KEY_FALLBACKS | '********************' |
SECURE_CONTENT_TYPE_NOSNIFF | True |
SECURE_CROSS_ORIGIN_OPENER_POLICY | 'same-origin' |
SECURE_HSTS_INCLUDE_SUBDOMAINS | False |
SECURE_HSTS_PRELOAD | False |
SECURE_HSTS_SECONDS | 0 |
SECURE_PROXY_SSL_HEADER | None |
SECURE_REDIRECT_EXEMPT | [] |
SECURE_REFERRER_POLICY | 'same-origin' |
SECURE_SSL_HOST | None |
SECURE_SSL_REDIRECT | False |
SERVER_EMAIL | 'root@localhost' |
SESSION_CACHE_ALIAS | 'default' |
SESSION_COOKIE_AGE | 1209600 |
SESSION_COOKIE_DOMAIN | None |
SESSION_COOKIE_HTTPONLY | True |
SESSION_COOKIE_NAME | 'sessionid' |
SESSION_COOKIE_PATH | '/' |
SESSION_COOKIE_SAMESITE | 'Lax' |
SESSION_COOKIE_SECURE | False |
SESSION_ENGINE | 'django.contrib.sessions.backends.db' |
SESSION_EXPIRE_AT_BROWSER_CLOSE | False |
SESSION_FILE_PATH | None |
SESSION_SAVE_EVERY_REQUEST | False |
SESSION_SERIALIZER | 'django.contrib.sessions.serializers.JSONSerializer' |
SETTINGS_MODULE | 'decodeschool.settings' |
SHORT_DATETIME_FORMAT | 'm/d/Y P' |
SHORT_DATE_FORMAT | 'm/d/Y' |
SIGNING_BACKEND | 'django.core.signing.TimestampSigner' |
SILENCED_SYSTEM_CHECKS | [] |
SITE_ID | 2 |
STATICFILES_DIRS | [] |
STATICFILES_FINDERS | ['django.contrib.staticfiles.finders.FileSystemFinder', 'django.contrib.staticfiles.finders.AppDirectoriesFinder'] |
STATICFILES_STORAGE | 'django.contrib.staticfiles.storage.StaticFilesStorage' |
STATIC_ROOT | '/var/www/decodeschool/static/' |
STATIC_URL | '/static/' |
STORAGES | {'default': {'BACKEND': 'django.core.files.storage.FileSystemStorage'}, 'staticfiles': {'BACKEND': 'django.contrib.staticfiles.storage.StaticFilesStorage'}} |
TEMPLATES | [{'APP_DIRS': True, 'BACKEND': 'django.template.backends.django.DjangoTemplates', 'DIRS': ['/var/www/decodeschool/templates'], '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', 'example_app.context_processors.add_variable_to_context'], 'libraries': {'custom_tags': 'templatetags.custom_tags', 'import_export_tags': 'templatetags.import_export_tags'}}}] |
TEST_NON_SERIALIZED_APPS | [] |
TEST_RUNNER | 'django.test.runner.DiscoverRunner' |
THOUSAND_SEPARATOR | ',' |
TIME_FORMAT | 'P' |
TIME_INPUT_FORMATS | ['%H:%M:%S', '%H:%M:%S.%f', '%H:%M'] |
TIME_ZONE | 'UTC' |
USE_DEPRECATED_PYTZ | False |
USE_I18N | True |
USE_L10N | True |
USE_THOUSAND_SEPARATOR | False |
USE_TZ | False |
USE_X_FORWARDED_HOST | False |
USE_X_FORWARDED_PORT | False |
WSGI_APPLICATION | 'decodeschool.wsgi.application' |
X_FRAME_OPTIONS | 'SAMEORIGIN' |
YEAR_MONTH_FORMAT | 'F Y' |
You’re seeing this error because you have DEBUG = True
in your
Django settings file. Change that to False
, and Django will
display a standard page generated by the handler for this status code.