iOS 11 and Xcode 9.0 I have get following error when upload watch app on iTunes.

> 
> iTunes Store Operation Failed ERROR ITMS-90396: "Invalid Icon. The
>  watch application 'MyApplication.app/Watch/myApp WatchKit App.app'
>  contains an icon file 'Icon Image-AppIcon-watch-86x86@2x.png' with an
>  alpha channel. Icons should not have an alpha channel."
> 
> 
> 

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