MonoBehaviours and ScriptableObjects are not recognized in 4.6 DLL

I'm in the process of compiling a .NET 4.6 version of Bolt, my visual scripting tool.

I am running Unity 2017.1.0f3, the earliest version supported by my plugin.

Multiple MonoBehaviours and ScriptableObjects are included in the DLLs I provide.

In a .NET 3.5 project, everything works fine: they are recognized by Unity, can be created as components and assets, and even have their iconMap property applied. This is "confirmed" by the project window display of the DLL's, which expands to show the recognized classes derived from UnityEngine.Object:



After compiling all these DLL's with .NET 4.6 as the target platform and importing them in a Unity project with the scripting runtime set to .NET 4.6, I get no error or warning outright, but none of these classes are recognized. Symptoms:

• The Bolt components cannot be added to game objects
• All Bolt scriptable objects throw this warning:
  No script asset for [Class Name]. Check that the definition is in a file of the same name.
• Note that the inspectors for scriptable objects actually work, minus the icon
• I can actually open the editor windows (via script), but the layouts using them fails to load
• The iconMap properties do not apply
• The project window does not show the classes inside the DLLs (screenshot)

For the record, the GUID's of all these DLL's is manually enforced to be the same across the 3.5 and 4.6 projects, so this is unrelated to the issue.

This is a major regression issue for me, as Bolt must be compiled via DLL's and many of my users require a .NET 4.6 version because of assembly name ambiguity errors.

The only error I think I might be making is referencing the wrong version of UnityEngine.dll and UnityEditor.dll when compiling 4.6 DLLs. However, looking at my Unity install, there appears to be only one version of these, located at: [InstallPath]\Editor\Data\Managed

For reference, here is one of my .csproj files for MSBuild:

Code (Xml):

1. <?xml version="1.0" encoding="utf-8"?>
2. <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
3.   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
4.   <!-- Project -->
5.   <PropertyGroup>
6.     <ProjectGuid>{0FE89C0A-B748-486B-AEDC-1AADB2D1FC31}</ProjectGuid>
7.     <RootNamespace>Bolt</RootNamespace>
8.     <AssemblyName>Bolt.Core.Runtime</AssemblyName>
9.     <DefineConstants>GUID_c8d0ad23af520fe46aabe2b1fecf6462;TARGET_INCLUDE_ALL;TARGET_BACKEND_IL2CPP</DefineConstants>
10.   </PropertyGroup>
11.   <!-- Shared -->
12.   <PropertyGroup>
13.     <Platform>AnyCPU</Platform>
14.     <PlatformTarget>AnyCPU</PlatformTarget>
15.     <OutputType>Library</OutputType>
16.     <AppDesignerFolder>Properties</AppDesignerFolder>
17.     <FileAlignment>512</FileAlignment>
18.     <TargetFrameworkProfile />
19.     <LangVersion>6</LangVersion>
20.     <ErrorReport>prompt</ErrorReport>
21.     <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
22.     <DebugSymbols>true</DebugSymbols>
23.     <DebugType>full</DebugType>
24.     <NoWarn>1591</NoWarn>
25.     <Configuration Condition=" '$(Configuration)' == '' ">Debug35</Configuration>
26.     <Stability Condition=" '$(Configuration)' == 'Debug35' Or '$(Configuration)' == 'Debug46' ">Debug</Stability>
27.     <Stability Condition=" '$(Configuration)' == 'Release35' Or '$(Configuration)' == 'Release46' ">Release</Stability>
28.     <TargetFrameworkVersionNumber Condition=" '$(Configuration)' == 'Debug35' Or '$(Configuration)' == 'Release35' ">3.5</TargetFrameworkVersionNumber>
29.     <TargetFrameworkVersionNumber Condition=" '$(Configuration)' == 'Debug46' Or '$(Configuration)' == 'Release46' ">4.6</TargetFrameworkVersionNumber>
30.     <OutputPath>bin\$(Stability)\$(TargetFrameworkVersionNumber)</OutputPath>
31.     <DocumentationFile>$(OutputPath)\$(AssemblyName).xml</DocumentationFile>
32.   </PropertyGroup>
33.   <!-- Debug -->
34.   <PropertyGroup Condition=" '$(Stability)' == 'Debug' ">
35.     <DefineConstants>$(DefineConstants);DEBUG;TRACE;ENABLE_PROFILER</DefineConstants>
36.   </PropertyGroup>
37.   <!-- Release -->
38.   <PropertyGroup Condition=" '$(Stability)' == 'Release' ">
39.     <DefineConstants>$(DefineConstants);RELEASE</DefineConstants>
40.     <Optimize>true</Optimize>
41.   </PropertyGroup>
42.   <!-- .NET 3.5 -->
43.   <PropertyGroup Condition=" '$(TargetFrameworkVersionNumber)' == 3.5 ">
44.     <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
45.     <DefineConstants>$(DefineConstants);NET35</DefineConstants>
46.   </PropertyGroup>
47.   <!-- .NET 4.6 -->
48.   <PropertyGroup Condition=" '$(TargetFrameworkVersionNumber)' == 4.6 ">
49.     <TargetFrameworkVersion>v4.6</TargetFrameworkVersion>
50.     <DefineConstants>$(DefineConstants);NET46</DefineConstants>
51.   </PropertyGroup>
52.   <!-- References -->
53.   <ItemGroup>
54.     <Reference Include="System" />
55.     <Reference Include="System.Core" />
56.     <Reference Include="UnityEngine, Version=0.0.0.0, Culture=neutral, processorArchitecture=MSIL">
57.       <SpecificVersion>False</SpecificVersion>
58.       <HintPath>..\..\Unity\UnityEngine.dll</HintPath>
59.     </Reference>
60.     <Reference Include="UnityEngine.UI">
61.       <HintPath>..\..\Unity\UnityEngine.UI.dll</HintPath>
62.     </Reference>
63.     <ProjectReference Include="..\..\Ludiq.Core\Runtime\Ludiq.Core.Runtime.csproj">
64.       <Project>{8bda7b48-d6ea-4762-822f-eca6ea7d4345}</Project>
65.       <Name>Ludiq.Core.Runtime</Name>
66.     </ProjectReference>
67.     <ProjectReference Include="..\..\Ludiq.Graphs\Runtime\Ludiq.Graphs.Runtime.csproj">
68.       <Project>{aabbe8dc-1b61-4d5b-bf81-7b66aa2566ff}</Project>
69.       <Name>Ludiq.Graphs.Runtime</Name>
70.     </ProjectReference>
71.   </ItemGroup>
72.   <!-- Sources -->
73.   <ItemGroup>
74.     <Compile Include="Events\Framework\Animation\IBoltAnimationEvent.cs" />
75.     <Compile Include="Events\Framework\Animation\IBoltNamedAnimationEvent.cs" />
76.     <Compile Include="Events\Framework\Application\IOnApplicationFocus.cs" />
77.     <Compile Include="Events\Framework\Application\IOnApplicationLostFocus.cs" />
78.     <Compile Include="Events\Framework\Application\IOnApplicationPause.cs" />
79.     <Compile Include="Events\Framework\Application\IOnApplicationQuit.cs" />
80.     <Compile Include="Events\Framework\Application\IOnApplicationResume.cs" />
81.     <Compile Include="Events\Framework\IBoltUnityEvent.cs" />
82.     <Compile Include="Events\Framework\ICustomEvent.cs" />
83.     <Compile Include="Events\Framework\Editor\IOnDrawGizmos.cs" />
84.     <Compile Include="Events\Framework\Editor\IOnDrawGizmosSelected.cs" />
85.     <Compile Include="Events\Framework\GUI\IOnButtonClick.cs" />
86.     <Compile Include="Events\Framework\GUI\IOnDeselect.cs" />
87.     <Compile Include="Events\Framework\GUI\IOnDropdownValueChanged.cs" />
88.     <Compile Include="Events\Framework\GUI\IOnGUI.cs" />
89.     <Compile Include="Events\Framework\GUI\IOnInputFieldEndEdit.cs" />
90.     <Compile Include="Events\Framework\GUI\IOnInputFieldValueChanged.cs" />
91.     <Compile Include="Events\Framework\GUI\IOnPointerClick.cs" />
92.     <Compile Include="Events\Framework\GUI\IOnPointerDown.cs" />
93.     <Compile Include="Events\Framework\GUI\IOnPointerEnter.cs" />
94.     <Compile Include="Events\Framework\GUI\IOnPointerExit.cs" />
95.     <Compile Include="Events\Framework\GUI\IOnPointerUp.cs" />
96.     <Compile Include="Events\Framework\GUI\IOnScrollbarValueChanged.cs" />
97.     <Compile Include="Events\Framework\GUI\IOnScrollRectValueChanged.cs" />
98.     <Compile Include="Events\Framework\GUI\IOnSelect.cs" />
99.     <Compile Include="Events\Framework\GUI\IOnSliderValueChanged.cs" />
100.     <Compile Include="Events\Framework\GUI\IOnToggleValueChanged.cs" />
101.     <Compile Include="Events\Framework\Hierarchy\IOnTransformChildrenChanged.cs" />
102.     <Compile Include="Events\Framework\Hierarchy\IOnTransformParentChanged.cs" />
103.     <Compile Include="Events\Framework\Input\IOnButtonInput.cs" />
104.     <Compile Include="Events\Framework\Input\IOnKeyboardInput.cs" />
105.     <Compile Include="Events\Framework\Input\IOnMouseDown.cs" />
106.     <Compile Include="Events\Framework\Input\IOnMouseDrag.cs" />
107.     <Compile Include="Events\Framework\Input\IOnMouseEnter.cs" />
108.     <Compile Include="Events\Framework\Input\IOnMouseExit.cs" />
109.     <Compile Include="Events\Framework\Input\IOnMouseInput.cs" />
110.     <Compile Include="Events\Framework\Input\IOnMouseOver.cs" />
111.     <Compile Include="Events\Framework\Input\IOnMouseUp.cs" />
112.     <Compile Include="Events\Framework\Input\IOnMouseUpAsButton.cs" />
113.     <Compile Include="Events\Framework\Lifecycle\IFixedUpdate.cs" />
114.     <Compile Include="Events\Framework\Lifecycle\ILateUpdate.cs" />
115.     <Compile Include="Events\Framework\Lifecycle\IOnDestroy.cs" />
116.     <Compile Include="Events\Framework\Lifecycle\IOnDisable.cs" />
117.     <Compile Include="Events\Framework\Lifecycle\IOnEnable.cs" />
118.     <Compile Include="Events\Framework\Lifecycle\IStart.cs" />
119.     <Compile Include="Events\Framework\Lifecycle\IUpdate.cs" />
120.     <Compile Include="Events\Framework\Navigation\IOnDestinationReached.cs" />
121.     <Compile Include="Events\Framework\Physics 2D\ICollisionEvent2D.cs" />
122.     <Compile Include="Events\Framework\Physics 2D\IOnCollisionEnter2D.cs" />
123.     <Compile Include="Events\Framework\Physics 2D\IOnCollisionExit2D.cs" />
124.     <Compile Include="Events\Framework\Physics 2D\IOnCollisionStay2D.cs" />
125.     <Compile Include="Events\Framework\Physics 2D\IOnJointBreak2D.cs" />
126.     <Compile Include="Events\Framework\Physics 2D\IOnTriggerEnter2D.cs" />
127.     <Compile Include="Events\Framework\Physics 2D\IOnTriggerExit2D.cs" />
128.     <Compile Include="Events\Framework\Physics 2D\IOnTriggerStay2D.cs" />
129.     <Compile Include="Events\Framework\Physics 2D\ITriggerEvent2D.cs" />
130.     <Compile Include="Events\Framework\Physics\ICollisionEventUnit.cs" />
131.     <Compile Include="Events\Framework\Physics\IOnCollisionEnter.cs" />
132.     <Compile Include="Events\Framework\Physics\IOnCollisionExit.cs" />
133.     <Compile Include="Events\Framework\Physics\IOnCollisionStay.cs" />
134.     <Compile Include="Events\Framework\Physics\IOnControllerColliderHit.cs" />
135.     <Compile Include="Events\Framework\Physics\IOnJointBreak.cs" />
136.     <Compile Include="Events\Framework\Physics\IOnParticleCollision.cs" />
137.     <Compile Include="Events\Framework\Physics\IOnTriggerEnter.cs" />
138.     <Compile Include="Events\Framework\Physics\IOnTriggerExit.cs" />
139.     <Compile Include="Events\Framework\Physics\IOnTriggerStay.cs" />
140.     <Compile Include="Events\Framework\Physics\ITriggerEvent.cs" />
141.     <Compile Include="Events\Framework\Rendering\IOnBecameInvisible.cs" />
142.     <Compile Include="Events\Framework\Rendering\IOnBecameVisible.cs" />
143.     <Compile Include="Events\Framework\Time\IOnTimerElapsed.cs" />
144.     <Compile Include="Events\GameObjectEvent.cs" />
145.     <Compile Include="Events\GlobalEvent.cs" />
146.     <Compile Include="Events\GlobalMessageListener.cs" />
147.     <Compile Include="Events\IEvent.cs" />
148.     <Compile Include="Events\IEventGraph.cs" />
149.     <Compile Include="Events\IGameObjectEvent.cs" />
150.     <Compile Include="Events\IGlobalEvent.cs" />
151.     <Compile Include="Events\IManualEvent.cs" />
152.     <Compile Include="Events\MessageListener.cs" />
153.     <Compile Include="Events\UnityMessageListener.cs" />
154.     <Compile Include="Properties\AssemblyInfo.cs" />
155.     <Compile Include="Variables\ApplicationVariables.cs" />
156.     <Compile Include="Variables\InspectorVariableNameAttribute.cs" />
157.     <Compile Include="Variables\IVariableGraph.cs" />
158.     <Compile Include="Variables\ObjectVariables.cs" />
159.     <Compile Include="Variables\SavedVariables.cs" />
160.     <Compile Include="Variables\SceneVariables.cs" />
161.     <Compile Include="Variables\VariableDeclaration.cs" />
162.     <Compile Include="Variables\VariableDeclarationCollection.cs" />
163.     <Compile Include="Variables\VariableDeclarations.cs" />
164.     <Compile Include="Variables\VariableKind.cs" />
165.     <Compile Include="Variables\VariableKindAttribute.cs" />
166.     <Compile Include="Variables\Variables.cs" />
167.     <Compile Include="Variables\VariablesAsset.cs" />
168.     <Compile Include="Variables\VariablesSaver.cs" />
169.   </ItemGroup>
170.   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
171.   <!-- Events -->
172.   <PropertyGroup>
173.     <PostBuildEvent>
174. echo $(DefineConstants) &gt; "$(TargetDir)\$(TargetName).defines"
175.  
176. robocopy "$(TargetDir)." "$(SolutionDir)Bolt.Unity.$(ConfigurationName)\Assets\Ludiq\Assemblies" *.dll *.dll.mdb *.pdb *.xml *.defines /xf Unity*.* nunit*.*
177.  
178. if errorlevel 1 exit 0 else exit %25errorlevel%25
179.     </PostBuildEvent>
180.   </PropertyGroup>
181. </Project>

Please advise!

 

That's unfortunate, because Bolt is meant to support 2017.1+.

I'll give it a try and let you know.

 

I totally understand! I'll just have to communicate that clearly to my users. No worries.

However, I did update to 2018.1.0b10 and the issue persists as is.

 

Just sent it, it is titled exactly like this thread.

I only included the .NET 4.6 version of the project from Unity 2018.1b10 because the older runtime version works without a problem.

Note that source files and build configs are not included, but I believe it's theoretically unrelated. A msbuild XML is pasted in the original post here in case you want to have a look.

 

Hi @JoshPeterson ! Did the team find a moment to have a look at this?