after migrating from Kentico 12 to Kentico 13, I encountered a couple of errors when attempting to make changes to the Sites section, as well as when trying to save the page type objects. Please see the error details below. Any suggestions or insights would be greatly appreciated.
Server Error in '/' Application. Object type 'cms.cssstylesheet' not found. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: Object type 'cms.cssstylesheet' not found.
An error occurred when saving data. Please see event log for more details. Message:
UPDATE CMS_Tree SET [NodeCacheMinutes] = @NodeCacheMinutes, [NodeDocType] = @NodeDocType, [NodeHeadTags] = @NodeHeadTags, [NodeBodyElementAttributes] = @NodeBodyElementAttributes, [NodeInheritPageLevels] = @NodeInheritPageLevels, [RequiresSSL] = @RequiresSSL, [NodeGroupID] = @NodeGroupID, [NodeTemplateID] = @NodeTemplateID, [NodeTemplateForAllCultures] = @NodeTemplateForAllCultures, [NodeInheritPageTemplate] = @NodeInheritPageTemplate, [NodeAllowCacheInFileSystem] = @NodeAllowCacheInFileSystem, [NodeIsContentOnly] = @NodeIsContentOnly, [NodeBodyScripts] = @NodeBodyScripts WHERE [NodeID] = @NodeID
Caused exception: Invalid column name 'NodeCacheMinutes'. Invalid column name 'NodeDocType'. Invalid column name 'NodeHeadTags'. Invalid column name 'NodeBodyElementAttributes'. Invalid column name 'NodeInheritPageLevels'. Invalid column name 'RequiresSSL'. Invalid column name 'NodeGroupID'. Invalid column name 'NodeTemplateID'. Invalid column name 'NodeTemplateForAllCultures'. Invalid column name 'NodeInheritPageTemplate'. Invalid column name 'NodeAllowCacheInFileSystem'. Invalid column name 'NodeIsContentOnly'.