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Celery – Python 的 分布式任务队列 AttributeError: ‘NoneType’ object has no attribute ‘Redis’ pydantic_core._pydantic_core.ValidationError: 4 validation errors for Settings ERROR: could not bind to distribution port 25672, it is in use by another node: rabbit@BF-202405311136 ‘rabbitmq-service’ 不是内部或外部命令，也不是可运行的程序或批处理文件。