C # plugin error could not load file or assembly

Grasshopper Developer
1

Hello Guys

made a plug-in for exporting data to Excel on my computer a plug-in and a node everything works fine

when starting the plugin on any other computer, this error occurs

Solution exception: Could not load file or assembly “EPPlus, Version = 4.5.3.3, Culture = neutral, PublicKeyToken = ea159fdaa78159a1” or one of their dependencies. Cannot find the specified file.

the plugin has the following libraries
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Text;

using Grasshopper.Kernel;
using Rhino.Geometry;
using Grasshopper.Kernel.Types;
using Grasshopper.Kernel.Data;
using OfficeOpenXml;

image

I installed the EPPlus package in the visual studio 2019

PM>Install-Package EPPlus -Version 4.5.3.3

Please tell me how to deal with such an error and how can I make this package carry along with the plugin and run on other computers?

2

Hi
try to include the EPPlus.dll assembly in the grasshopper special components folder. Probably at runtime GH is not able to locate it properly.

2 Likes
3

Thank you very much did not think about it! :slightly_smiling_face: :innocent:
the file next to the plugin laid everything worked

EPPlus.dll
EPPlus.xml

1 Like
4

in continuation of the question, please tell me whether it is possible to somehow put files (EPPlus.dll EPPlus.xml) inside the grasshopper plug-in file ***.gha? :grinning:
so that they are not constantly transferred with the plugin file? :face_with_monocle:

or is it technically not possible?

5

Hi Alex,

to my knowledge it is not possible because that is in external assembly that does not exist in other peoples computer. If you take a look, there are also lots of Grasshopper plugins that have to ship with external assemblies that are added in the special component folders so that at run-time they can be found by the computer.

1 Like
6

Thank you very much for the answer! :grinning: