gradle project refresh failed: protocol family unavailable
帮新同事安装android studio，安装完毕导入项目时候发现报这个异常：
gradle project refresh failed: protocol family unavailable
同时伴生另外一个错误：
Internal HTTP server disabled: Cannot start internal HTTP server. Git integration, JavaScript debugger and LiveEdit may operate with errors. Please check your firewall settings and restart
Android Studio
按照提示关闭防火墙然后重启，再rebuild一下就好了。 | 
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