File' does not exist in the namespace UnityEngine.Windows'

[einstyle]

When imported, two errors:

Assets/Scripts/ImageToEmotionAPI.cs(39,44): error CS0234: The type or namespace name File' does not exist in the namespace UnityEngine.Windows'. Are you missing an assembly reference?

Assets/Scripts/ShowImageOnPanel.cs(28,27): error CS0103: The name `File' does not exist in the current context

How to solve them?

[einstyle]

Ok, it seems that this can work:
In ShowImageOnPanel.cs:
#if UNITY_WINRT
byte[] fileData = UnityEngine.Windows.File.ReadAllBytes(fileName);
#else
byte[] fileData = System.IO.File.ReadAllBytes(fileName);
#endif

Instead, in ImageToEmotionAPI.cs:
#if UNITY_WINRT
byte[] bytes = UnityEngine.Windows.File.ReadAllBytes(fileName);
#else
byte[] bytes = System.IO.File.ReadAllBytes(fileName);
#endif

[Amal-A-U]

how does this work??