[![enter image description here](https://i.stack.imgur.com/iJJk6.png)](https://i.stack.imgur.com/iJJk6.png)

this is my linked libraries 
[![enter image description here](https://i.stack.imgur.com/OivVT.png)](https://i.stack.imgur.com/OivVT.png)

AVFoundation/AVFoundation is there ,but i can't import header files,i don't know why ?