[Common] _BSMachError: port 705f; (os/kern) invalid capability (0x14) "Unable to insert COPY_SEND"
[Common] _BSMachError: port 705f; (os/kern) invalid name (0xf) "Unable to deallocate send right"
以上是控制台输出的错误信息，但是不影响正常使用，解决办法是如下：
- (void)alertAction{
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
// do some things
});
}
