Grasshopper

algorithmic modeling for Rhino

Hi, am using grasshopper for 3 years..i am recently facing this problem... already installed and used plugin suddenly missing from my tool bar..i tried re copying the file to component folder but still not coming..my rhino and grasshopper are up to date...
the missing plugin for me: ELK , Anemone( recently).
please help me .

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Can you create ELK components if you double click the canvas and type the name?

Nope, couldn't get it, even in that double click menu.

@david : is this problem occurred before..? is it fixable?

These plugins are clearly not getting loaded then. Please copy/paste the contents of the Rhino CommandHistory window after Grasshopper loads. There may be clues in there why the plugins failed to load.

here the command history:

Loading V-Ray for Rhino, version 1.50.22564
File "C:\Program Files\Rhinoceros 5 (64-bit)\Plug-Ins\VRayForRhino\Misc\VRayForRhinoV4_tb.rui" is already open.
Command: Grasshopper
An error occured during GHA assembly loading:
Path: C:\Users\Solomon\AppData\Roaming\Grasshopper\Libraries\anemone.gha
Exception System.IO.FileLoadException:
Message: Could not load file or assembly 'file:///C:\Users\Solomon\AppData\Roaming\Grasshopper\Libraries\anemone.gha' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)

Exception System.NotSupportedException:
Message: An attempt was made to load an assembly from a network location which would have caused the assembly to be sandboxed in previous versions of the .NET Framework. This release of the .NET Framework does not enable CAS policy by default, so this load may be dangerous. If this load is not intended to sandbox the assembly, please enable the loadFromRemoteSources switch. See http://go.microsoft.com/fwlink/?LinkId=155569 for more information.

An error occured during GHA assembly loading:
Path: C:\Users\Solomon\AppData\Roaming\Grasshopper\Libraries\elk.gha
Exception System.IO.FileLoadException:
Message: Could not load file or assembly 'file:///C:\Users\Solomon\AppData\Roaming\Grasshopper\Libraries\elk.gha' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)

Exception System.NotSupportedException:
Message: An attempt was made to load an assembly from a network location which would have caused the assembly to be sandboxed in previous versions of the .NET Framework. This release of the .NET Framework does not enable CAS policy by default, so this load may be dangerous. If this load is not intended to sandbox the assembly, please enable the loadFromRemoteSources switch. See http://go.microsoft.com/fwlink/?LinkId=155569 for more information.

An error occured during GHA assembly loading:
Path: C:\Users\Solomon\AppData\Roaming\Grasshopper\Libraries\excelreadwrite.gha
Exception System.IO.FileLoadException:
Message: Could not load file or assembly 'file:///C:\Users\Solomon\AppData\Roaming\Grasshopper\Libraries\excelreadwrite.gha' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)

Exception System.NotSupportedException:
Message: An attempt was made to load an assembly from a network location which would have caused the assembly to be sandboxed in previous versions of the .NET Framework. This release of the .NET Framework does not enable CAS policy by default, so this load may be dangerous. If this load is not intended to sandbox the assembly, please enable the loadFromRemoteSources switch. See http://go.microsoft.com/fwlink/?LinkId=155569 for more information.

An error occured during GHA assembly loading:
Path: C:\Users\Solomon\AppData\Roaming\Grasshopper\Libraries\Firefly_Kinect.gha
Exception System.IO.FileLoadException:
Message: Could not load file or assembly 'file:///C:\Users\Solomon\AppData\Roaming\Grasshopper\Libraries\Firefly_Kinect.gha' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)

Exception System.NotSupportedException:
Message: An attempt was made to load an assembly from a network location which would have caused the assembly to be sandboxed in previous versions of the .NET Framework. This release of the .NET Framework does not enable CAS policy by default, so this load may be dangerous. If this load is not intended to sandbox the assembly, please enable the loadFromRemoteSources switch. See http://go.microsoft.com/fwlink/?LinkId=155569 for more information.

is there any solution for it @david? 

It seems that somehow your .gha files got blocked. It happens when you download a library from the web, Windows assumes it may be harmful and blocks it from loading. A solution would be to right click each gha (and dll if there is any) and go to properties > You should see "Unblock" option down there.

The same error 0x80131515 is for instance spotted here 

http://stackoverflow.com/questions/8524423/could-not-load-file-or-a...

... see the second top voted answer.

EDIT : I have not a single idea how it happened if you already did use them.

@Mateusz Zwierzycki :thank you so much it helped me a lot..:)

Hey Mateusz, so i am having the same problem with kangaroo 2, and all the gha and dll files are unblocked... any clue where i could proceed?

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