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Could not load file or assembly

I had some problem similar to this one:https://www.syncfusion.com/forums/54790/error-after-adding-components-to-toolbar
Therefor I followed the advice and removed the references and added them via References ==> Add reference ==> extensions ==> and picked the latest versions of the following files.

I was able to drag and drop for instance a buttonAdv on the winform. But I tried to build the application, and then I got this message:
"Could not load file or assembly 'Syncfusion.Tools.Windows, Version=14.2460.0.26, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89' or one of its dependencies. The system cannot find the file specified."

Why is it still referencing to an old (uninstalled) version, instead of the file I just added via add reference? And now I cannot build, save or check in my work.
please advice.
Kind regards,

3 Replies

KJ Keerthana Jegannathan Syncfusion Team October 20, 2016 06:29 AM UTC

Hi Matthijs,     
Thank you for contacting Syncfusion Support.      
We suspect that the GAC assemblies were not properly configured or previous version of Syncfusion assemblies were not removed properly from your machine. Please refer to the below link to ensure whether the GAC assemblies are installed properly in your machine.      
And also ensure whether the Syncfusion controls are configured properly for the .NET Framework version using the below steps:     
Step 1:    
·        Close your application and clear bin/obj files.    
·        Open Essential Studio and then select Utilities.   
Step 2:   
Select Assembly Management and then select Assembly Manager Launch option.   
Step 3:   
 Remove all the installed versions from your machine.   
Step 4:   
 Select the Installed version and framework.   
Step 5:   
 Select Perform Action to start the installation of controls.    
Step 6:     
Please close the application and clean the bin and obj folder of your application and rebuild the project again and make sure that the Syncfusion assemblies are properly referred to and try to use ButtonAdv in Form Designer.      
If the above solution doesn’t help, please close the application and clean the bin and obj folder of your application and rebuild the project again. Delete the mentioned control from your Toolbox and add it again using the following steps.     
Step 1:     
 Delete the Button from Toolbox as mentioned in the screenshot.     
Step 2:     
 Add it again as mentioned in the screenshot.     
Step 3:     
Add ButtonAdv based on the Framework you haved used in your Visual Studio as mentioned in the screenshot.     
Step 4:     
The ButtonAdv will be added in ToolBox and it should be working properly now.      
Please do the above and let us know if it helped.    
Keerthana J.   

MD Matthijs de Zwart October 20, 2016 07:28 AM UTC

Thanks for the help!

KJ Keerthana Jegannathan Syncfusion Team October 21, 2016 04:44 AM UTC

Hi Matthijs,   
We are glad that your problem has been resolved. Please let us know if you need further assistance. 
Keerthana J. 

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