Master branch does not build for IL2CPP in 5.6

[StephenHodgson]

Overview

Using the standard build window and setting the Scripting backend to IL2CPP, the editor fails to build due to glTF libraries.

Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(141,55): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(143,31): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(156,23): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(156,46): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(157,23): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(157,48): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(158,23): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(158,49): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(159,23): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(159,47): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(160,23): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(160,46): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(165,27): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(168,47): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(170,59): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(184,27): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(186,47): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(188,45): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(212,39): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(214,47): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(217,71): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(220,42): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(223,42): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(233,128): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(234,57): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(234,47): error CS1579: foreach statement cannot operate on variables of type 'System.Collections.Generic.Dictionary<string, GLTF.Schema.AccessorId>' because 'System.Collections.Generic.Dictionary<string, GLTF.Schema.AccessorId>' does not contain a public definition for 'GetEnumerator'
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(256,17): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(302,40): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(302,34): error CS1579: foreach statement cannot operate on variables of type 'System.Collections.Generic.List<GLTF.Schema.NodeId>' because 'System.Collections.Generic.List<GLTF.Schema.NodeId>' does not contain a public definition for 'GetEnumerator'
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(337,22): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(339,44): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(339,39): error CS1579: foreach statement cannot operate on variables of type 'System.Collections.Generic.List<GLTF.Schema.NodeId>' because 'System.Collections.Generic.List<GLTF.Schema.NodeId>' does not contain a public definition for 'GetEnumerator'
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(353,72): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(356,38): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(358,38): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(382,45): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(387,42): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(390,41): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(394,36): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(398,37): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(402,37): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(406,37): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(410,40): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(418,42): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(434,75): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(455,31): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(455,63): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(459,36): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(459,68): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(546,25): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(546,51): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(548,82): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(709,23): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(710,23): error CS0012: The type 'List<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(711,21): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(712,21): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Collections, Version=4.0.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Assets\HoloToolkit\Utilities\Scripts\GLTF\Scripts\GLTFSceneImporter.cs(714,82): error CS0165: Use of unassigned local variable 'extension'

Unity Editor Version

5.6.6f2

Mixed Reality Toolkit Release Version

84493c9

[david-c-kline]

I believe we recommend the .NET Backend for releases prior to 2018.1.

[StephenHodgson]

Well seeing as we don't need glTF for anything less than 2017, we can probably do something to prevent these from being included.

[david-c-kline]

Wrap in 2017_1_OR_NEWER?

[StephenHodgson]

Possibly?

[david-c-kline]

Or publish a supported backends / unity versions chart?

[StephenHodgson]

Well the problem is with the glTF plugin specifically, so maybe we should open a ticket there and reference this one.

[keveleigh]

Closing, as v2 shouldn't have this issue and we aren't supporting Unity 5.6.