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Assembly Failure on K2 Five Fix Pack 16"  "SourceCode.Forms.Controls.Web.ControlPack.Common"

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This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice. This article is not considered official documentation for K2 software and is provided "as is" with no warranties.
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Issue

Assembly Failure on K2 Five Fix Pack 16:

Logged Error:
"Error from controlutil output: RegisterControlTypes Failed: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.

Could not load type 'SourceCode.Forms.Controls.Web.ControlPack.KendoUIBase' from assembly 'SourceCode.Forms.Controls.Web.ControlPack.Common, Version=4.0.0.0, Culture=neutral, PublicKeyToken=16a2c5aaaa1b130d"

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Symptoms

This is will cause K2 Designer and K2 Management to fail on Startup. This issue is due to a known problem with Fix Pack 16 of K2 5.1

Resolution

Please see KB Article: 
http://help.k2.com/kb002656

This error is resolved in Fix Pack 19 of K2 5.1.

This can be downloaded from the link below:
https://portal.k2.com/products/k2five5-1fix-pack19