django配置celery错误：django.db.utils.DatabaseError

错误：django.db.utils.DatabaseError"/>

django配置celery错误：django.db.utils.DatabaseError

执行异步任务时报错：django.db.utils.DatabaseError: DatabaseWrapper objects created in a thread can only be used in that same thread. The object with alias ‘default’ was created in thread id 3047101641304 and this is thread id 3047208084584.

原先启动命令(Windows下)：
celery -A xxx worker -l info -P eventlet （xxx为项目名）

修改后的启动命令，celery版本4x：

celery -A xxx worker -l info -P solo