Running python manage.py runserver returns error LookupError: No installed app with label 'admin'
It is an issue related to sqlparse. It happens when you are using newest version of packages.
Try : 
pip install sqlparse 
Note - your terminal must activate virtual environment.
I'm trying to run python manage.py runserver but i'm getting 
LookupError: No installed app with label 'admin'
this is what i get by python manage.py check

Traceback (most recent call last):   File "manage.py", line 21, in
  
      main()   File "manage.py", line 17, in main
      execute_from_command_line(sys.argv)   File "C:\Users\hitma\Envs\ftest\lib\site-packages\django\core\management__init__.py",
  line 381, in execute_from_command_line
      utility.execute()   File "C:\Users\hitma\Envs\ftest\lib\site-packages\django\core\management__init__.py",
  line 357, in execute
      django.setup()   File "C:\Users\hitma\Envs\ftest\lib\site-packages\django__init__.py", line
  24, in setup
      apps.populate(settings.INSTALLED_APPS)   File "C:\Users\hitma\Envs\ftest\lib\site-packages\django\apps\registry.py",
  line 114, in populate
      app_config.import_models()   File "C:\Users\hitma\Envs\ftest\lib\site-packages\django\apps\config.py",
  line 211, in import_models
      self.models_module = import_module(models_module_name)   File "C:\Users\hitma\Envs\ftest\lib\importlib__init__.py", line 126, in
  import_module
      return _bootstrap._gcd_import(name[level:], package, level)   File "", line 996, in _gcd_import   File
  "", line 979, in _find_and_load   File
  "", line 968, in _find_and_load_unlocked 
  File "", line 673, in _load_unlocked
  File "", line 667, in
  exec_module   File "", line 222, in
  _call_with_frames_removed   File "C:\Users\hitma\Envs\ftest\lib\site-packages\django\contrib\auth\models.py",
  line 2, in 
      from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager   File
  "C:\Users\hitma\Envs\ftest\lib\site-packages\django\contrib\auth\base_user.py",
  line 47, in 
      class AbstractBaseUser(models.Model):   File "C:\Users\hitma\Envs\ftest\lib\site-packages\django\db\models\base.py",
  line 117, in new
      new_class.add_to_class('_meta', Options(meta, app_label))   File "C:\Users\hitma\Envs\ftest\lib\site-packages\django\db\models\base.py",
  line 321, in add_to_class
      value.contribute_to_class(cls, name)   File "C:\Users\hitma\Envs\ftest\lib\site-packages\django\db\models\options.py",
  line 204, in contribute_to_class
      self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())   File
  "C:\Users\hitma\Envs\ftest\lib\site-packages\django\db__init__.py",
  line 28, in getattr
      return getattr(connections[DEFAULT_DB_ALIAS], item)   File "C:\Users\hitma\Envs\ftest\lib\site-packages\django\db\utils.py", line
  201, in getitem
      backend = load_backend(db['ENGINE'])   File "C:\Users\hitma\Envs\ftest\lib\site-packages\django\db\utils.py", line
  110, in load_backend
      return import_module('%s.base' % backend_name)   File "C:\Users\hitma\Envs\ftest\lib\importlib__init__.py", line 126, in
  import_module
      return _bootstrap._gcd_import(name[level:], package, level)   File "C:\Users\hitma\Envs\ftest\lib\site-packages\django\db\backends\sqlite3\base.py",
  line 28, in 
      from .introspection import DatabaseIntrospection            # isort:skip   File
  "C:\Users\hitma\Envs\ftest\lib\site-packages\django\db\backends\sqlite3\introspection.py",
  line 4, in 
      import sqlparse   File "C:\Users\hitma\Envs\ftest\lib\site-packages\sqlparse__init__.py",
  line 16, in 
      from sqlparse import filters   File "C:\Users\hitma\Envs\ftest\lib\site-packages\sqlparse\filters__init__.py",
  line 17, in 
      from sqlparse.filters.tokens import KeywordCaseFilter   File "C:\Users\hitma\Envs\ftest\lib\site-packages\sqlparse\filters\tokens.py",
  line 27, in 
      class KeywordCaseFilter(_CaseFilter): TypeError: '_TokenType' object is not callable

i followed the main doucment for installing django,Thanks
django version: 2.2
python: 3.6.0a4