Xcode报错： library not found for -

报错 library not found for -libstdc++.6.0.9，解决办法如下⬇️

一、真机

将tbd副本放到下面路径中：

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib/

二、模拟器

将tdb副本放到下面路径中：

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib/

Xcode 10将dylib副本放到下面路径中：

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/usr/lib/

Xcode 11将dylib副本放到下面路径中：

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/usr/lib

（下载：libstdc++.6.0.9下载地址【密码:lxci】）