Note: Refer to the first link
The reason for the error is that iOS10 deleted the libstdc++.6.0.9 library file after the upgrade, so you just need to download it and put it in.
1. Download libstdc++. 6.0.9. TBD
Download Address:
https://pan.baidu.com/s/10gZrtGtspgpKT7qSY-bBDg
2. Download and note that the file name may not be this change file named libstdc++.6.0.9. TBD
3. Place the download file in the specified location
(1) Real machine runtime location
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib
(2) Location of the simulator runtime library
/ Applications/Xcode. App/Contents/Developer/Platforms/iPhoneSimulator platform/Developer/SDKs/iPhoneSimulator SDK/usr/lib
(access – to – & gt; Go to folder -& GT; Copy the above location go to find the location and then paste the downloaded file into the lib file and restart Xcode.)
Reference link:
https://blog.csdn.net/w1035524412/article/details/82863840
https://www.jianshu.com/p/a3f3c8361cf1
The reason for the error is that iOS10 deleted the libstdc++.6.0.9 library file after the upgrade, so you just need to download it and put it in.
1. Download libstdc++. 6.0.9. TBD
Download Address:
https://pan.baidu.com/s/10gZrtGtspgpKT7qSY-bBDg
2. Download and note that the file name may not be this change file named libstdc++.6.0.9. TBD
3. Place the download file in the specified location
(1) Real machine runtime location
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib
(2) Location of the simulator runtime library
/ Applications/Xcode. App/Contents/Developer/Platforms/iPhoneSimulator platform/Developer/SDKs/iPhoneSimulator SDK/usr/lib
(access – to – & gt; Go to folder -& GT; Copy the above location go to find the location and then paste the downloaded file into the lib file and restart Xcode.)

Reference link:
https://blog.csdn.net/w1035524412/article/details/82863840
https://www.jianshu.com/p/a3f3c8361cf1
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