下載下面三個壓縮包，並分別複製到指定目錄
libstdc++_sim
解壓出來的三個文件 libstdc++.6.0.9.tbd libstdc++.6.tbd libstdc++.tbd，複製到下面路徑：
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib
libstdc++.6.0.9.tbd
解壓出來的libstdc++.6.0.9.tbd複製到下面路徑：
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib
libstdc++.dylib_sim
解壓出來的三個文件 libstdc++.6.0.9.dylib libstdc++.6.dylib libstdc++.dylib，複製到下面路徑：
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/usr/lib