How do I install Grasshopper on Rhino5?

At present Grasshopper should run on Rhino 4.0 (SR8 or later), Rhino5 32-bit and Rhino5 64-bit. However, the Grasshopper installer only informs Rhino 4.0. You'll need to install Grasshopper on Rhino 5.0 manually.

Additionally, while running on Rhino 4.0, Grasshopper requires the .NET 3.5 framework to be installed. Rhino 4.0 does not ensure this so there may be a cryptic error. You can download and install .NET 3.5 from the Microsoft website.

While running on Rhino 5.0, Grasshopper requires the .NET 4.0 (or newer) framework. Rhino 5.0 does check for this so you will be duly informed if you do not have .NET 4.0

First, try the easy installation procedure, if that doesn't work, try the more difficult one.

Locate the GrasshopperPlugin.rhp file. It should be in <ProgramFiles>/Rhinoceros 4.0/Plug-ins/Grasshopper, but it may be in a different folder depending on the access privileges of your Windows account.
Start Rhino 5.0
Drag+Drop the GrasshopperPlugin.rhp file into the Rhino 5.0 viewport
Grasshopper should now be installed and you should be able to run the _Grasshopper command.

If the above doesn't work, you may need to copy the entire Grasshopper plugin folder into the Rhino 5.0 Plug-ins folder before loading it using the same steps outlined above. Note that once you manually copy the files, they will not be uninstalled or updated automatically either.

David Rutten

david@mcneel.com

Poprad, Slovakia

Replies to This Discussion

Permalink Reply by David Rutten on May 31, 2013 at 1:18pm

Yes it does. If you want newer Grasshoppers you'll have to get Rhino5. If you don't want to purchase Rhino5 then you'll be stuck with Grasshopper 0.9.0014 forever.

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by Andrew Cole on September 20, 2013 at 2:28pm

Hi,

I'm trying to install the updated Grasshopper on my Rhino 5 and I get this pop-up,

I notice that the plug-in update that I downloaded is a .rhi file instead of .rhp mentioned in this thread. Is that the issue? and how do I fix that?

Any help would be greatly appreciated!

Permalink Reply by Andrew Cole on September 20, 2013 at 2:37pm

Hi,

I'm trying to install the updated Grasshopper on my Rhino 5 and I get this pop-up,

I notice that the plug-in update that I downloaded is a .rhi file instead of .rhp mentioned in this thread. Is that the issue? and how do I fix that?

Any help would be greatly appreciated!

Attachments:

install issues.jpg, 433 KB

Permalink Reply by David Rutten on September 20, 2013 at 2:40pm

Which Rhino5 Service Release have you got?

David Rutten

david@mcneel.com

Tirol, Austria

Permalink Reply by naciem nowrouzi on September 20, 2013 at 3:12pm

Hi David,

I am having an issue with the new grasshopper release as well and I have not been able to install it. It downloads as .rhi file.

I am currently using Rhino Version 5 SR5 (5.5.30717.16015, 7/17/2013) Educational and GH 0.9.0052.

I had Rhino 4, 5 and grasshopper on my machine. I uninstalled GH, as suggested for installing the new GH. At this point, GH in Rhino 4 was uninstalled and not running, but still working on Rhino 5. I uninstalled Rhino 4 thinking there may be a link between Rhino 4 & 5, but old Gh is still working on Rhino 5 and I don't even know how to uninstall it from Rhino 5 since in my "uninstall, install programs" Gh does not exist anymore!

I talked to McNeel tech guys and no luck!

They suggested to open the .rhi file with browsing for the "rhinoexec.exe" in C:\Program Files\Rhinoceros 5 (64-bit)\System\x86. I did that and was able to run the .rhi file and complete the installation successfully, but when I open GH, it is still showing my old (0.9.0052 version).

At this point, I am thinking to remove everything and install Rhino 5 and GH from scratch, but that will cost me a lot of time for re-installing all the plugins that I use....

Any idea what the problem may be?

Thanks,

Naciem

Permalink Reply by David Rutten on September 20, 2013 at 4:33pm

If you had it from way back, you probably installed GH on Rhino5 manually. You copied all the files somewhere else which is why Rhino5 kept on finding GH eventhough you uninstalled the 'official' version. Uninstalling/reinstalling Rhino certainly won't help.

Here's what to do:

Start Rhino5
Type in the PluginManaged command
Find Grasshopper in the list of installed plugins
Look at the Properties for the plugin and find the file location.

You can then shut down Rhino and manually delete the Grasshopper folder.

Incidentally if you want to automatically run RHI files on the latest Rhino5 service release, you have to go into the Control Panel and 'repair' the Rhino installation. That's the easiest way to fix that bug.

David Rutten

david@mcneel.com

Tirol, Austria

Permalink Reply by naciem nowrouzi on September 21, 2013 at 11:42am

Hi David,

Thank you so much for your response.

It worked this time, but I had to do everything manually even after repairing my Rhino 5.

For those of you that are struggling with the same problem:

1. follow the steps that David suggested.

2. When you try to download the GH from http://www.grasshopper3d.com, if it downloads as .rhi file again, follow the following instruction:

Right click on .rhi file then "Open with" and browse for the "rhinoexec.exe" in C:\Program Files\Rhinoceros 5 (64-bit)\System\x86.

As soon as you click on OK. it will run the GH installation and will say that GH was successfully installed, but then when I opened Rhino 5, even though the 0.9.0061 folder was in the previous location:

C:\Users\naciem\AppData\Roaming\McNeel\Rhinoceros\5.0\Plug-ins\Grasshopper {..........}\0.9.61.0

my GH was not installed in Rhino 5 and I had to install it manually by:

1. Type "PluginManager" command in Rhino 5

2.Click on "Install" and browse for "GrasshopperPlugin.rhp" file in C:\Users\naciem\AppData\Roaming\McNeel\Rhinoceros\5.0\Plug-ins\Grasshopper {..........}\0.9.61.0

And now GH 0.9.0061 seems to be installed and working.

I hope this helps!

Thanks,

Naciem

Attachments:

0.9.0061.JPG, 65 KB

Permalink Reply by Andrew Cole on September 21, 2013 at 2:02pm

Thanks Naciem and David!

I followed all those steps, (plus un-installing my Rhino4 copy) and everything seemed to work properly!

Very grateful as my entire studio this term is based around computational design via Python for Rhino and the use of Grasshopper. I would have been in a very rough spot had I not been able to get that working ASAP haha!

Cheers!

Andrew

Permalink Reply by Justin Kelly on October 18, 2013 at 6:19pm

I started in with Naciem's install procedure, but noticed that the .rhi file was already associated with "Rhino Installer Engine". I just went back to "grasshopper_0.9.61.0.rhi" and double clicked it, and a Rhino installer window popped up and installed it.

I'm on Win 7 x64, Rhino 5 SR4 x64
I had put the .rhi file in the same folder as the only other .rhi file I found on my system before double clicking it: C:\ProgramData\McNeel\Rhinoceros\5.0\Packages. I'm not sure if that made any difference for the install, or if the .rhi would have been tidied up and moved there had it been somewhere else when I double clicked it.

Permalink Reply by Guy Hollister on September 5, 2014 at 4:16am