Thank you for contacting us.
The upgrade was not completed sucessfully. The upgraded project still referenced Sitefinity 4.2.1650 assemblies. To upgrade to 4.4 fist upgrade from 4.2.1650 to 4.3.1885 which is part of the official upgrade path.
If the project is still refering to the old assemblies even after the upgrade:
Parser Error Message: Could not load file or assembly 'Telerik.Sitefinity.Utilities, Version=4.2.1650.0, Culture=neutral, PublicKeyToken=b28c218413bdf563' or one of its dependencies. The located assembly's manifest
1.Create new project on Sitefinity 4.3.1885 and copy the contents of its bin folder to a newly created folder on the hard disk.
2. Remove all references from your 4.2.1650 project (open the project in visual studio and remove all under references.)
3. Right click References
and then Add Reference...
4. Get reference to all assemblies from the folder created in step 1.
5.Build the project in visual studio (F6) and start it.
6. The project should be upgraded without a problem
Login to the backend and if all is ok follow the same steps to upgrade from 4.3.1885 to 4.4.2117
the Telerik team
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