WCF分佈式開發常見錯誤解決(7):Cannot have two operations in the same contract

    我們啓動服務宿主程序的時候，有可能出現如下的無效操作異常，信息如下： Cannot have two operations in the same contract with the same name, methods SayHello and SayHello in type WCFService.IWCFService violate this rule. You can chang

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