И <var>X</var>, и <var>Y</var> используют имя сообщения '<var>Z</var>'. Используйте свойство MessageName особого атрибута WebMethod для задания уникальных имен сообщений для методов.

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Both <var>X</var> and <var>Y</var> use the message name '<var>Z</var>'. Use the MessageName property of the WebMethod custom attribute to specify unique message names for the methods.

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