環境
Unity:2017.2.0f3
エラー内容
Editor: Metal support disabled, skipping device initialization
解決方法
Edit -> Project Setting -> Setting for iOS(PC) -> Other Settings
のMetal Editor Support
にチェックを入れる
Changing editor graphics device
Changing active graphics API requires reloding all graphics objects,it might take a while
というダイアログが出てくるのでApply
で解決