Cannot handle deformable objects

[youwyu]

Great Work! However, I tried with example bunny with shadow hand

<flexcomp type="mesh" file="bunny.obj" pos="0 0 .1" dim="2" euler="90 0 0"
                  radius=".001" rgba="0 .7 .7 1" mass=".05" name="softbody" dof="trilinear">
      <elasticity young="1e3" poisson="0.1" damping="0.001" elastic2d="stretch"/>
      <contact selfcollide="none" internal="false"/>
</flexcomp>

It gives me the following issue

grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
        status = StatusCode.UNKNOWN
        details = "Unexpected error in RPC handling"
        debug_error_string = "UNKNOWN:Error received from peer ipv4:127.0.0.1:45789 {grpc_message:"Unexpected error in RPC handling", grpc_status:2}"

Do you have any idea about a quick fix?

[thowell]

@youwyu it is possible that the version of MuJoCo that MJPC is pinned to does not support all of the specified flex features in flex/bunny.xml.