Missing meshes and x64 error in Unity 2021.3.24f1

[mischakolbe]

Dear PollenRobotics team,

I followed the README multiple times but didn't manage to create a scene with Reachy2 in it, which displayed or ran correctly. I seem to run into 2 problems:

1. Missing meshes

The meshes don't show up and in the inspector they are marked as missing:

When I try to import the FBX into Blender, I get an error because it seems to be an ASCII FBX.. Could this have something to do with the issue in Unity?
ASCII FBX files are not supported 'C:\\Users\\mkolbe\\ReachyTest_2021_3_24f1\\Library\\PackageCache\\com.pollenrobotics.reachysimulator@d2401ca2ca\\Meshes\\reachy_articulations_ready.fbx'

This is the super simple Unity scene I'm using:
SampleScene.zip

2. Arm kinematics plugin doesn't support x64 architecture(?)

When I try to run the project, I get these errors:

Failed to load 'C:/Users/mkolbe/ReachyTest2/Library/PackageCache/com.pollenrobotics.reachysimulator@d2401ca2ca/Plugins/Arm_kinematics.dll', expected x64 architecture, but was Unknown architecture. You must recompile your plugin for x64 architecture.
UnityEngine.StackTraceUtility:ExtractStackTrace ()
JointServiceServer:Start () (at Library/PackageCache/com.pollenrobotics.reachysimulator@d2401ca2ca/Scripts/JointServiceServer.cs:57)

Failed to load 'C:/Users/mkolbe/ReachyTest2/Library/PackageCache/com.pollenrobotics.reachysimulator@d2401ca2ca/Plugins/Arm_kinematics.dll', expected x64 architecture, but was Unknown architecture. You must recompile your plugin for x64 architecture.
UnityEngine.StackTraceUtility:ExtractStackTrace ()
JointServiceServer:Start () (at Library/PackageCache/com.pollenrobotics.reachysimulator@d2401ca2ca/Scripts/JointServiceServer.cs:57)

DllNotFoundException: Arm_kinematics.dll assembly:<unknown assembly> type:<unknown type> member:(null)
JointServiceServer.Start () (at Library/PackageCache/com.pollenrobotics.reachysimulator@d2401ca2ca/Scripts/JointServiceServer.cs:57)

Since only the .dll is included I don't see a way to recompile this plugin. Am I missing something?

These are the plugins that I installed according to the README (first the Reachy Simulator package, then GRPC via Pollen Robotics > Install GRPC)

[mischakolbe]

I found out what went wrong with the first issue:

When installing the Reachy2021 Package, the reachy_articulations_ready.fbx is not correctly downloaded (seems related to it being a git LFS file). When I cloned the repo manually, I could copy/paste the asset over into my project and it shows up correctly now.