WebGL run fails with failed thread creation

I’ve built from UnityGLTF from master, added the GLTFComponentto a scene to load a remote GLTF and disabled multithreading. When I built to WebGL I get the following error. I’ve found that the 1.0.0 release builds and runs in webgl.

Related: #138

SystemException: Thread creation failed.
UnityLoader.js:1043   at System.Threading.Thread.StartInternal (System.Security.Principal.IPrincipal principal, System.Threading.StackCrawlMark& stackMark) [0x00000] in <00000000000000000000000000000000>:0 
UnityLoader.js:1043 Rethrow as TypeInitializationException: The type initializer for 'System.Threading.Timer.Scheduler' threw an exception.
UnityLoader.js:1043 
UnityLoader.js:1043 Rethrow as TypeInitializationException: The type initializer for 'System.Threading.Timer' threw an exception.
UnityLoader.js:1043   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <00000000000000000000000000000000>:0 
UnityLoader.js:1043 --- End of stack trace from previous location where exception was thrown ---
UnityLoader.js:1043   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <00000000000000000000000000000000>:0 
UnityLoader.js:1043 --- End of stack trace from previous location where exception was thrown ---
UnityLoader.js:1043   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <00000000000000000000000000000000>:0 
UnityLoader.js:1043 --- End of stack trace from previous location where exception was thrown ---
UnityLoader.js:1043   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <00000000000000000000000000000000>:0 
UnityLoader.js:1043 --- End of stack trace from previous location where exception was thrown ---
UnityLoader.js:1043   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <00000000000000000000000000000000>:0 

[edumlauer]

We have a slightly modified version of the app running on WebGL.

You can try this:

• Revert WebRequestLoader.cs to this version: https://github.com/KhronosGroup/UnityGLTF/blob/83d267f2616585fc8aba5391c003c9a5538ada97/UnityGLTF/Assets/UnityGLTF/Scripts/Loader/WebRequestLoader.cs

• Alter this line https://github.com/KhronosGroup/UnityGLTF/blob/bb189f382697317321a583b22f0aab3692414366/UnityGLTF/Assets/UnityGLTF/Scripts/GLTFComponent.cs#L100 to loader = new WebRequestLoader(directoryPath, asyncCoroutineHelper);

• And this line https://github.com/KhronosGroup/UnityGLTF/blob/ce8485e3b982d1349f1b4b086cba421faf9b11fb/UnityGLTF/Assets/UnityGLTF/Examples/MultiSceneComponent.cs#L24 to loader = new WebRequestLoader(directoryPath, _asyncCoroutineHelper);

• Disable the Multithreaded property from the GLTFComponent.

[kolodi]

So I have included 2 shaders in the graphics settings

1. PbrMetallicRoughness
2. PbrSpecularGlossiness Then I was waiting for like 3 hours for building, then I realize that it repeats “compiling shader variants” infinitely: