1) Project->Info->Deployment Target->iOS Deployment Target更改为 当前/更早的设备版本号;
2) Target->Summary->iOS Application Target->Deployment Target更改 当前/更早的设备版本号;
1) Project->Info->Deployment Target->iOS Deployment Target更改为 当前/更早的设备版本号;
2) Target->Summary->iOS Application Target->Deployment Target更改 当前/更早的设备版本号;