在该容器未创建问题或已被删除。我加了

The problem was the container was not created or had been deleted. I added

container.CreateIfNotExist（）;

container.CreateIfNotExist();

和它工作得很好。我会期待一个不同的错误不是404而是固定它。

and it worked fine. I would have expect a different error not a 404. but that fixed it.