Traceback (most recent call last): File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\nose\case.py", line 198, in runTest self.test(*self.arg) File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\nose\util.py", line 620, in newfunc return func(*arg, **kw) File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\django\test\utils.py", line 111, in setup_test_environment "setup_test_environment() was already called and can't be called " RuntimeError: setup_test_environment() was already called and can't be called again without first calling teardown_test_environment(). 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\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\django\core\management_init_.py", line 381, in execute_from_command_line utility.execute() File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\django\core\management_init_.py", line 375, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\django\core\management\commands\test.py", line 23, in run_from_argv super().run_from_argv(argv) File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\django\core\management\base.py", line 323, in run_from_argv self.execute(*args, **cmd_options) File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\django\core\management\base.py", line 364, in execute output = self.handle(*args, **options) File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\django\core\management\commands\test.py", line 53, in handle failures = test_runner.run_tests(test_labels) File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\django_nose\runner.py", line 308, in run_tests result = self.run_suite(nose_argv) File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\django_nose\runner.py", line 245, in run_suite addplugins=plugins_to_add) File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\nose\core.py", line 121, in init **extra_args) File "C:\Program Files\Python37\Lib\unittest\main.py", line 101, in init self.runTests() File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\nose\core.py", line 207, in runTests result = self.testRunner.run(self.test) File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\nose\core.py", line 66, in run result.printErrors() File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\nose\plugins\manager.py", line 99, in call return self.call(*arg, **kw) File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\nose\plugins\manager.py", line 167, in simple result = meth(*arg, **kw) File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\django_nose\plugin.py", line 89, in finalize self.runner.teardown_test_environment() File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\django\test\runner.py", line 588, in teardown_test_environment teardown_test_environment() File "C:\Users\tay.virtualenvs\relog-XSTo8UAo\lib\site-packages\django\test\utils.py", line 144, in teardown_test_environment saved_data = _TestState.saved_data AttributeError: type object '_TestState