Dash not working on Mac

[jackjansen]

Dash isn't working on the Mac anymore.
This may have started happening long ago, possibly when we started incorporating the Dash libraries in VR2G-nativeLibraries (because I cannot imagine that I didn't test them). But maybe I didn't test and the problem started earlier.

Problem is that some dynamic libraries are missing:

[vrt_create_ext] failure: can't load '/Users/jack/src/VRTogether/VR2Gather/Assets/ExternalAssets/VR2G-nativeLibraries/VRTNativeLibraries/Plugins/mac//GPACMuxMP4.smd' (dlopen(/Users/jack/src/VRTogether/VR2Gather/Assets/ExternalAssets/VR2G-nativeLibraries/VRTNativeLibraries/Plugins/mac//GPACMuxMP4.smd, 0x0082): Library not loaded: /opt/msprod/sysroot/osx//lib/libgpac.dylib
  Referenced from: <AFF98D41-F2E1-30CB-B96B-9A8103E985CE> /Users/jack/src/VRTogether/VR2Gather/Assets/ExternalAssets/VR2G-nativeLibraries/VRTNativeLibraries/Plugins/mac/GPACMuxMP4.smd
  Reason: tried: '/opt/msprod/sysroot/osx//lib/libgpac.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/opt/msprod/sysroot/osx//lib/libgpac.dylib' (no such file), '/opt/msprod/sysroot/osx//lib/libgpac.dylib' (no such file), '/usr/local/lib/libgpac.dylib' (no such file), '/usr/lib/libgpac.dylib' (no such file, not in dyld cache))
AsyncB2DWriter#0(http://192.168.37.30:8082/4ae6bcc1-7aaf-4b63-aec4-16583bda6c6f/206e7ac1-c635-4f5e-a27c-8e65f58481d9/pcc/) Exception:AsyncB2DWriter#0: vrt_create: failed to create uploader http://192.168.37.30:8082/4ae6bcc1-7aaf-4b63-aec4-16583bda6c6f/206e7ac1-c635-4f5e-a27c-8e65f58481d9/pcc/pointcloud.mpd
UnityEngine.StackTraceUtility:ExtractStackTrace () (at /Users/bokken/build/output/unity/unity/Runtime/Export/Scripting/StackTrace.cs:37)
UnityEngine.DebugLogHandler:LogFormat (UnityEngine.LogType,UnityEngine.Object,string,object[])
UnityEngine.Logger:Log (UnityEngine.LogType,object)
UnityEngine.Debug:Log (object)
VRT.Transport.Dash.AsyncB2DWriter:.ctor (string,string,string,int,int,Cwipc.StreamSupport/OutgoingStreamDescription[]) (at Assets/Transport/Dash/Bin2Dash/Workers/Writers/AsyncB2DWriter.cs:84)
VRT.UserRepresentation.PointCloud.PointCloudPipelineSelf:_InitForSelfUser (VRT.Core.VRTConfig/_User/_PCSelfConfig,bool) (at Assets/UserRepresentation/PointClouds/Scripts/PointCloudPipelineSelf.cs:226)
VRT.UserRepresentation.PointCloud.PointCloudPipelineSelf:Init (bool,object,VRT.Core.VRTConfig/_User,bool) (at Assets/UserRepresentation/PointClouds/Scripts/PointCloudPipelineSelf.cs:76)
VRT.Pilots.Common.PlayerControllerBase:SetRepresentation (VRT.Core.UserRepresentationType,bool,bool) (at Assets/Pilots/Common/Players/PlayerControllerBase.cs:181)
VRT.Pilots.Common.PlayerControllerBase:_SetupCommon (VRT.Orchestrator.Wrapping.User) (at Assets/Pilots/Common/Players/PlayerControllerBase.cs:97)
VRT.Pilots.Common.PlayerControllerSelf:SetUpPlayerController (bool,VRT.Orchestrator.Wrapping.User) (at Assets/Pilots/Common/Players/PlayerControllerSelf.cs:29)
VRT.Pilots.Common.SessionPlayersManager:InstantiatePlayers () (at Assets/Pilots/Common/Players/SessionPlayersManager.cs:166)
VRT.Pilots.Common.SessionPlayersManager/<InstantiatePlayersAfterDelay>d__21:MoveNext () (at Assets/Pilots/Common/Players/SessionPlayersManager.cs:118)
UnityEngine.SetupCoroutine:InvokeMoveNext (System.Collections.IEnumerator,intptr) (at /Users/bokken/build/output/unity/unity/Runtime/Export/Scripting/Coroutines.cs:17)

[jackjansen]

I think the needed files are in src/VRTogether/MotionSpell/msprod/sysroot/osx/lib. Need to find out which ones are actually needed.

Also need to check there isn't a problem on Windows (I think not) and Linux (unsure).