It became popular when connected to a real device (because the blogger forgot to take screenshots that have been processed)
Questions are as follows:
Provisioning profile "iOS Team Provisioning Profile: com.xxx.xxx" doesn't include signing certificate "iPhone Developer: xxx xxx (MQF8D9PK85)".Code signing is required for product type 'Application' in SDK 'iOS 10.2'
1. At this time, switch to the desktop, select the file ----> go, there is still a hidden function missing at this time, select the Alt key, and the "resource library" will appear
2. Resource library ---->MobileDevice ---->Provisioning Profiles, delete all the gear files inside, and then re-download the gear files and certificates under Account under Preferences under Xcode
Can refer to the article
http://www.jianshu.com/p/a50e4e098a08