Skype占用80端口导致VS调试web应用失败

Skype 会占用80及443端口，这会导致调试Web程序(http 80端口)时VS报错误信息。可以在Skype的工具〉选项〉连接里面把占用80, 443端口的选项禁掉。

Conflicts with applications (such as Apache or IIS) working on port 80/443 .

If you have IIS/Apache or similar software installed that uses ports 80 and/or 443 and you experience conflicts (such as service start-up failure or malfunctions) the cause is most likely that your Skype is configured to use the same ports as the applications that experience problems.

There are two possible solutions to this issue:

In Skype under Tools > Options > Connections untick the option Use ports 80 and 443 for incoming connections . Skype will then use the port specified in the text box (please make sure you also have opened that specific port in your router or firewall).
Configure your http service/IIS/other to use another port for communications.