Re: Error was: cannot import name 'GDALRaster in Window 8.1

It looks like GDAL isn't installed on your system.

Looking at https://docs.djangoproject.com/en/stable/ref/contrib/gis/install/#spatial-database, I believe it's a required dependency -- perhaps we should try to improve the error message.

On Sunday, April 30, 2017 at 10:20:01 AM UTC-4, Prashant Verma wrote:

C:\User\.........\Desktop\Geolocation>python manage.py makemigrations

Traceback (most recent call last):

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\db\utils.py", line 115, in load_backend

    return import_module('%s.base' % backend_name)

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\importlib\__init__.py", line 126, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "<frozen importlib._bootstrap>", line 978, in _gcd_import

  File "<frozen importlib._bootstrap>", line 961, in _find_and_load

  File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked

  File "<frozen importlib._bootstrap>", line 655, in _load_unlocked

  File "<frozen importlib._bootstrap_external>", line 677, in exec_module

  File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\contrib\gis\db\backends\postgis\base.py", line 7, in <module>

    from .operations import PostGISOperations

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\contrib\gis\db\backends\postgis\operations.py", line 7, in <module>

    from django.contrib.gis.gdal import GDALRaster

ImportError: cannot import name 'GDALRaster'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "manage.py", line 22, in <module>

    execute_from_command_line(sys.argv)

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\core\management\__init__.py", line 363, in execute_from_command_line

    utility.execute()

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\core\management\__init__.py", line 337, in execute

    django.setup()

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\__init__.py", line 27, in setup

    apps.populate(settings.INSTALLED_APPS)

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\apps\registry.py", line 108, in populate

    app_config.import_models()

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\apps\config.py", line 202, in import_models

    self.models_module = import_module(models_module_name)

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\importlib\__init__.py", line 126, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "<frozen importlib._bootstrap>", line 978, in _gcd_import

  File "<frozen importlib._bootstrap>", line 961, in _find_and_load

  File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked

  File "<frozen importlib._bootstrap>", line 655, in _load_unlocked

  File "<frozen importlib._bootstrap_external>", line 677, in exec_module

  File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\contrib\auth\models.py", line 4, in <module>

    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\contrib\auth\base_user.py", line 52, in <module>

    class AbstractBaseUser(models.Model):

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\db\models\base.py", line 124, in __new__

    new_class.add_to_class('_meta', Options(meta, app_label))

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\db\models\base.py", line 330, in add_to_class

    value.contribute_to_class(cls, name)

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\db\models\options.py", line 214, in contribute_to_class

    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\db\__init__.py", line 33, in __getattr__

    return getattr(connections[DEFAULT_DB_ALIAS], item)

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\db\utils.py", line 211, in __getitem__

    backend = load_backend(db['ENGINE'])

  File "C:\Users\Prashant\Desktop\Geolocation\casino_locater\lib\site-packages\django\db\utils.py", line 134, in load_backend

    raise ImproperlyConfigured(error_msg)

django.core.exceptions.ImproperlyConfigured: 'django.contrib.gis.db.backends.postgis' isn't an available database backend.

Try using 'django.db.backends.XXX', where XXX is one of:

    'mysql', 'oracle', 'postgresql', 'sqlite3'

Error was: cannot import name 'GDALRaster'

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