请问你的意思是你在安装VS2015的时候遇到的这个错误吗？还是你安装2015以后，你安装了别的tool？
比如，是不是Web Deploy v3.6 package没有安装正确啊？
应该是可以单独下载安装的：
http://www.microsoft.com/en-us/download/details.aspx?id=43717
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