'release' is unavailable: not available in automatic reference counting mode..:

單擊項目,選擇"Build Settings",搜索"Objective - C Automatic Reference Counting",選擇 NO

Cannot creat __weak reference in file using manual reference counting?

Settings -> Apple LLVM 7.1 - Language - Objective C -> Weak References in Manual Retain Release to YES.

運行時報錯-Verify the Developer App certificate for youraccount

is? trusted on your device. Open Settings on Mayoyi_sakura and

navigate to General -> Device Management, then select your

解決方法：打開手機設置->通用->設備管理，找到編輯工程時的ID資料，點擊允許即可。