How prevent Grasshopper from crashing Rhino

I’m wondering what I can do to load Grasshopper without it causing Rhino 7 (mac) to crash. Everything worked fine until I added the Millipede plugin this morning, after which point Rhino crashes a few seconds after I attempt to open Grasshopper.

For what it’s worth, I can’t find a plugin folder, hidden or otherwise from which to remove Millipede (directory structure screenshot shown). Thank you!

Hi Reginald -

Since you’re running Rhino 7, you should see the 7.0 version of Rhino in that directory structure, and further plug-ins under that:


… that’s where you should be looking for traces of Millipede.

Alas, I do not. Can you think of any reason why the 7.0 folder would not appear? Would it be advisable to uninstall Rhino, delete all of these folders, and then install it again? Thank you!

Hi @reginald.raye,

Where did you download Millipede from? How did you install it?

– Dale

I downloaded the zip off of this site and dropped all the files (1 .dha and 4 .dll) into the components folder per usual.

Hi Reginald -

Not really. Could you run the Rhino SystemInfo command and copy-paste the result here?

Rhino 7 SR22 2022-9-12 (Rhino 7, 7.22.22255.05002, Git hash:master @ 196b1bc7dd093321e28dcc7a2bb8709a9bebe12d)
License type: Commercial, build 2022-09-12
License details: Stand-Alone

Apple macOS Version 10.14.6 (Build 18G9323) (Physical RAM: 16Gb)
Mac Model Identifier: MacBookPro11,4
Language: en-US (MacOS default)

Intel Iris Pro OpenGL Engine (OpenGL ver:4.1 INTEL-12.10.31)

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: Intel Inc.
Render version: 4.1
Shading Language: 4.10
Maximum Texture size: 16384 x 16384
Z-Buffer depth: n/a
Maximum Viewport size: 16384 x 16384
Total Video Memory: 1536 MB
Graphics: Intel Iris Pro
Displays: Color LCD (221dpi 2x)

Graphics processors
Intel Iris Pro (1536 MB)
Color LCD (1440 x 900)

USB devices
Apple Inc.: Apple Internal Keyboard / Trackpad
Broadcom Corp.: Bluetooth USB Host Controller
Logitech: USB Receiver

Bluetooth devices

Third party kernel extensions
com.getdropbox.dropbox.kext (1.16.0) 3AE6322E-26C2-31E1-84AD-A927F701AD7D

Third party plugins
/Users/reggieraye/Library/Application Support/McNeel/Rhinoceros/packages/7.0/IntelDenoiser/0.6.3/libtbb.dylib
/Users/reggieraye/Library/Application Support/McNeel/Rhinoceros/packages/7.0/IntelDenoiser/0.6.3/libtbbmalloc.dylib

Rhino plugins that do not ship with Rhino
/Users/reggieraye/Library/Application Support/McNeel/Rhinoceros/packages/7.0/IntelDenoiser/0.6.3/IntelDenoiser.Mac.rhp “IntelDenoiser.Mac”

Rhino plugins that ship with Rhino
/Applications/Rhino “RhinoCycles” 7.22.22255.5002
/Applications/Rhino “STL Export” 7.22.22255.1002
/Applications/Rhino “Snapshots” 7.22.22255.1002
/Applications/Rhino “Grasshopper” 7.22.22255.5002
/Applications/Rhino “PanelingTools” 7.22.22255.1002
/Applications/Rhino “AnimationTools” 7.22.22255.1002
/Applications/Rhino “Commands” 7.22.22255.5002
/Applications/Rhino “SolidTools” 7.22.22255.1002
/Applications/Rhino “Renderer Development Kit” 7.22.22255.1002
/Applications/Rhino “RDK_EtoUI” 7.22.22255.5002
/Applications/Rhino “Displacement” 7.22.22255.1002
/Applications/Rhino “Rhino Render” 7.22.22255.5002
/Applications/Rhino “IronPython” 7.22.22255.5002
/Applications/Rhino “Legacy Rhino Render” 7.22.22255.1002
/Applications/Rhino “Export SVG” 7.22.22255.5002

Are you looking in the right place?

I’m not sure. How might I find the packages folder referenced in the path /Users/reggieraye/Library/Application Support/McNeel/Rhinoceros/packages/7.0/?

When I navigate there (even when pressing command-shift-period to show hidden folders) it’s not there - just what is shown here:

Hi Reginald -
Apparently, you can use the GrasshopperFolders command to open the correct folders.

Holy cow, for whatever reason GrasshopperFolders shows all these super hidden folders. I deleted the offending Millipede files and everything immediately started to work normally. Thank you so much Wim (and Joseph and Dale) - I am incredibly grateful for your help!