# Error Message since Weeks, when starting Grasshopper

**URL:** <https://discourse.mcneel.com/t/error-message-since-weeks-when-starting-grasshopper/189028>\
**Category:** Grasshopper\
**Tags:** windows, grasshopperrhino, rhino8\
**Created:** [August 3, 2024, 8:27pm UTC](https://discourse.mcneel.com/t/error-message-since-weeks-when-starting-grasshopper/189028 "2024-08-03T20:27:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![\_Rhino\_User](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/_rhino_user/32/768492_2.png) [@\_Rhino\_User](https://discourse.mcneel.com/u/_Rhino_User)\
**Post date:** [August 3, 2024, 8:27pm UTC](https://discourse.mcneel.com/t/error-message-since-weeks-when-starting-grasshopper/189028/1 "2024-08-03T20:27:53Z")

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Hallo,  
I get a Loading Error, everytime when first starting Grasshopper in Rhino 8.  
If i press “Close” Grasshopper is finishing loading, starting and i cant see any problem when using Grasshopper.

Newest Update:  
Version 8 SR10  
(8.10.24212.13001, 2024-07-30)  
Windows Use

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/0/e/5/0e587f33bb85b3113581edf8772db35990adb539.jpeg)  
 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/5/8/d/58decd2a929fb3b65d60bf4343081e5a27d6e36a.png)

"  
Object: GH\_ReadSectionJSON\_Component (level 1)  
{  
Exception has been thrown by the target of an invocation.  
TargetInvocationException  
}

Object: GH\_ReadSectionJSON\_Component (level 2)  
{  
Could not load file or assembly ‘System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad3XXXX’. Das System kann die angegebene Datei nicht finden.  
FileNotFoundException  
}

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<div class="post-metadata">

**Author:** ![AndyPayne](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/andypayne/32/611612_2.png) [@AndyPayne](https://discourse.mcneel.com/u/AndyPayne)\
**Post date:** [August 3, 2024, 9:10pm UTC](https://discourse.mcneel.com/t/error-message-since-weeks-when-starting-grasshopper/189028/2 "2024-08-03T21:10:07Z")

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This more than likely is coming from a plugin that you have installed. Have you tried removing your plugins and reinstalling one by one to find the culprit?