Message in Chinese (Simplified) (中文(简体))

通过“<var>X</var>”参数向序列化程序提供的已知类型之一无效，因为该类型为 Null。所有指定的已知类型都必须是非 Null 值。

Unlocalized message

One of the known types provided to the serializer via '<var>X</var>' argument was invalid because it was null. All known types specified must be non-null values.

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