Hi everyone,
Today I use the toaster in the yocto project in the imx8dxmek.
1.According the imx yocto linux user guide,I install the yocto environment.
2.run DISTRO=fsl-imx-wayland MACHINE=imx8dxmek source imx-setup-release.sh -b imx8dx_toaster_build
3.run source toaster start
4.In the webbrowser ,set the http://localhost:8000/
5.click the newproject in the top right corner.
6.Project name is test ,enable Import command line project,the exist project directory is /home/zenghongjin/imx-yocto-bsp/imx8dx_toaster_build,then click create peoject

7.Now I get the error message
Environment:
Request Method: POST
Request URL: http://localhost:8000/toastergui/newproject/
Django Version: 1.11.29
Python Version: 3.8.5
Installed Applications:
('django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.messages',
'django.contrib.sessions',
'django.contrib.admin',
'django.contrib.staticfiles',
'django.contrib.humanize',
'bldcollector',
'toastermain',
'bldcontrol',
'orm',
'toastergui')
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware')
Traceback:
File "/home/zenghongjin/.local/lib/python3.8/site-packages/django/core/handlers/exception.py" in inner
41. response = get_response(request)
File "/home/zenghongjin/.local/lib/python3.8/site-packages/django/core/handlers/base.py" in _legacy_get_response
249. response = self._get_response(request)
File "/home/zenghongjin/.local/lib/python3.8/site-packages/django/core/handlers/base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)
File "/home/zenghongjin/.local/lib/python3.8/site-packages/django/core/handlers/base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/zenghongjin/imx-yocto-bsp/sources/poky/bitbake/lib/toaster/toastergui/views.py" in newproject
1410. management.call_command('buildimport', '--command=import', '--name=%s' % request.POST['projectname'], '--path=%s' % request.POST['importdir'], interactive=False)
File "/home/zenghongjin/.local/lib/python3.8/site-packages/django/core/management/__init__.py" in call_command
131. return command.execute(*args, **defaults)
File "/home/zenghongjin/.local/lib/python3.8/site-packages/django/core/management/base.py" in execute
330. output = self.handle(*args, **options)
File "/home/zenghongjin/imx-yocto-bsp/sources/poky/bitbake/lib/toaster/toastermain/management/commands/buildimport.py" in handle
507. default_release = Release.objects.get(id=1)
File "/home/zenghongjin/.local/lib/python3.8/site-packages/django/db/models/manager.py" in manager_method
85. return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/home/zenghongjin/.local/lib/python3.8/site-packages/django/db/models/query.py" in get
378. raise self.model.DoesNotExist(
Exception Type: DoesNotExist at /toastergui/newproject/
Exception Value: Release matching query does not exist.

How to resolve the problem?Who can give me some advice?
Thanks.