Migrated bug from GitHub: https://github.com/Unity-Technologies/InputSystem/issues/159

Reproduction Steps:
1. Create a new project with the InputSystem module
2. Change build platform to UWP
3. Change PlayerSettings->Configuration -> Scripting Runtime Version to ".NET 4.x Equivalent"

Expected:
No compile issues

Observed:
Numerous Ambiguous calls between System/System.Collections.Generic and UnityEngine.Experimental.Input.Net35Compatibility

Notes:
- Reproduced with 2018.2.0b11 and Trunk rev 96052d777ea1
- InputSystem\Utilities\Net35Compatibility.cs has include guards that look like they are meant to correct this. Perhaps these include guards have changed?
- Example Error: C:/Users/jackpr/AppData/Local/Unity/cache/packages/staging-packages.unity.com/com.unity.inputsystem@0.0.4-preview/InputSystem/Actions/InputActionManager.cs(465,42): error CS0104: IReadOnlyList' is an ambiguous reference betweenSystem.Collections.Generic.IReadOnlyList' and `UnityEngine.Experimental.Input.Net35Compatibility.IReadOnlyList'

douglas-piconi commented 28 days ago
@jackpr-unity Looks like this problem is outside of the input system code. Right now, the script compiler is broken and wrong for UWP in both the editor and the player. The pre compile defines that we use do not do anything. I'm messaging the scripting team and found a fogbugz bug that has already been filed by someone else, and will try to get this priority and user pain possibly bumped up.
https://fogbugz.unity3d.com/f/cases/1075345/