AssertionError: ("Creating a ModelSerializer without either the 'fields' attribute or the 'exclude'

报错信息如下：

AssertionError: (“Creating a ModelSerializer without either the ‘fields’ attribute or the ‘exclude’ attribute has been deprecated since 3.3.0, and is now disallowed. Add an explicit fields = ‘all’ to the UserInfoSerializer serializer.”,)

谷歌翻译为：
AssertionError ：（“自3.3.0开始，不建议创建不具有’fields’属性或’exclude’属性的ModelSerializer，现在禁止使用。向UserInfoSerializer序列化器添加显式字段=‘all’。”，）

检查发现：是fields这个属性单词写错了

正确的事情说三遍
注意：正确的写法为fields，fields，fields！！！
注意：正确的写法为fields，fields