读取组信息出错。

Error reading group information.

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然后读取组节点的ou属性的值，获取用户经过授权的业务角色。

It then reads the values attached to the ou attributes of the group nodes to learn the user's authorized business roles.

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否则，读取组的成员，把成员名由名称服务格式转换为人可读的格式并返回给调用者。

It then reads member of the group and then converts member name from name service format to human readable format to return it to the caller.

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