Ios 解除锁定viewcontroller警告

我得到这个警告，这是非常恼人的。当我试图从另一个viewController分配新的viewController时出现问题。以前有人看到过这个警告吗？我该怎么做才能让它消失？修理它对我来说很重要

2016-09-19 16:55:09.216523 App[5204:1274804] [Common] _BSMachError: port e26f; (os/kern) invalid capability (0x14) "Unable to insert COPY_SEND"
2016-09-19 16:55:09.217554 App[5204:1274804] [Common] _BSMachError: port e26f; (os/kern) invalid name (0xf) "Unable to deallocate send right"

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它已经回答了。检查这个链接，你解决了吗？

DispatchQueue.main.async(execute: {
  // put your code to do allocate new viewController from 
  // another viewController here to ensure running in main thread
})