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Could not load type 'EPiServer.Core.ThumbnailManager' from assembly 'EPiServer, Version=10.10.4.0,

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I'm stuck on this error message when trying to publish a page in EPiServer:

Could not load type 'EPiServer.Core.ThumbnailManager' from assembly 'EPiServer, Version=10.10.4.0

Does anyone know what the problem is?

#191921
May 02, 2018 19:45
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What version are you using? It sounds like you upgraded to CMS 11 but there are some configuration that were not properly updated. That class was moved to EPiServer.Cms.AspNet now

#191922
May 02, 2018 19:53
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I’m on Episerver 10.10.4. 

#191923
May 02, 2018 19:55
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Do you have the full stacktrace (From log probably)? 

#191925
May 02, 2018 20:02
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After some research, I got a better error message that led me to the problem. It was a chief2moro imageextension that was incompatible. Thanks for your time.

#191928
May 02, 2018 21:42
This topic was created over six months ago and has been resolved. If you have a similar question, please create a new topic and refer to this one.
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