Just hit the same issue on a upgraded site, also not using modelbuilders (error didn't happen immedialty after upgrade but just popped up a couple days after)
Usually means that one of the DLLs (eg an Umbraco DLL) has not been properly upgraded. Can you check? Can you test with a fresh Umbraco install instead of an upgrade?
Problems with Umbraco.ModelsBuilder
I've got this error:
Could not load types from assembly Umbraco.ModelsBuilder, Version=3.0.1.92, Culture=neutral, PublicKeyToken=null, errors: Exception: System.TypeLoadException: Couldn't load type "Umbraco.Web.Editors.EditorValidator
1" from assembly "umbraco, Version=1.0.5820.25379, Culture=neutral, PublicKeyToken=null". Exception: System.TypeLoadException: Couldn't load type "Umbraco.Web.Editors.EditorValidator
1" from assembly "umbraco, Version=1.0.5820.25379, Culture=neutral, PublicKeyToken=null". Exception: System.TypeLoadException: Couldn't load type "Umbraco.Web.Editors.EditorValidator1" from assembly "umbraco, Version=1.0.5820.25379, Culture=neutral, PublicKeyToken=null". Exception: System.TypeLoadException: Couldn't load type "Umbraco.Web.Editors.EditorValidator
1" from assembly "umbraco, Version=1.0.5820.25379, Culture=neutral, PublicKeyToken=null". Exception: System.TypeLoadException: Couldn't load type "Umbraco.Web.Models.ContentEditing.ContentTypeSave1" from assembly "umbraco, Version=1.0.5820.25379, Culture=neutral, PublicKeyToken=null". Exception: System.TypeLoadException: Couldn't load type "Umbraco.Web.Models.ContentEditing.ContentTypeSave
1" from assembly "umbraco, Version=1.0.5820.25379, Culture=neutral, PublicKeyToken=null". Exception: System.TypeLoadException: Couldn't load type "Umbraco.Web.Models.ContentEditing.ContentTypeSave`1" from assembly "umbraco, Version=1.0.5820.25379, Culture=neutral, PublicKeyToken=null".I even can't find the cause! I've reinstalled Umbraco several times but it didn't help.
Hello,
Sounds like the same problem as this topic: https://our.umbraco.org/forum/getting-started/installing-umbraco/75628-could-not-load-file-or-assembly-umbracomodelsbuilder-or-one-of-its-dependencies
Jeroen
Hi Roman, Did you find the fix for this error? I encounter the exact same thing after I upgrade from 7.3 to latest which is I think 7.4.
Anyone figure this one out?
Just hit the same issue on a upgraded site, also not using modelbuilders (error didn't happen immedialty after upgrade but just popped up a couple days after)
Usually means that one of the DLLs (eg an Umbraco DLL) has not been properly upgraded. Can you check? Can you test with a fresh Umbraco install instead of an upgrade?
Ok thanks, might be the case :) Yeah not getting it on a fresh install
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