"A transport-level error has occurred when sending the request to the server,指定的网络名不在可用"的解决办法

项目在外网服务器上运行的时候,遇到一个异常:"A transport-level error has occurred when sending the request to the server...",异常被抛出,影响到程序的正常使用.项目在外网服务器上运行的时候,遇到一个异常:"A transport-level error