Xcode10报错之libstdc++.6.0.9.tbd未找到(librarynotfoundfor-lstdc++.6.0.9)需要用到的旧库。解压后粘贴到指定目录：真机：/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib模拟器：/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib然后重启Xco