Xcode升级到10以后，运行模拟器出现下面的报错[Client] Synchronous remote object proxy returned error:

[Client] Synchronous remote object proxy returned error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated.}

解决办法：

在终端运行下面这行：

xcrun simctl spawn booted log config --mode "level:off"  --subsystem com.apple.CoreTelephony

原文链接：https://stackoverflow.com/questions/52455652/xcode-10-seems-to-break-com-apple-commcenter-coretelephony-xpc