I am trying to get a clients site migrated from 3.7.2096.2 to 6.0.4210.0 and keep getting "Connection to 3.7 project has failed." messages at the point of trying to Test Connection. I have:
* Installed 6.0.4210.0 trial (do not have license purchased yet)
* Created new project in Project Manager
* Performed manual setup steps from http://www.sitefinity.com/documentation/documentationarticles/installation-and-administration-guide/migrating-your-sitefinity-3-7-project
* Try to execute Test Connection with correct parameters only to get the above error every time
Accessing the MigrationService.svc on the 3.7 project gives the error:
Could not load file or assembly 'Telerik.Cms.Engine, Version=3.7.2136.2, Culture=neutral, PublicKeyToken=dfeaee0e3978ac79' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
Which seems to agree with other posts in forums and such that the migration only works for 3.7 SP4. Is this the case still? What approach do I need to take to upgrade to 6.0? Migrate from 3.7 pre-SP4 to 3.7 SP4 first and then from that to 6.0? 3.7 pre-SP4 -> 3.7 SP4 -> 4.x -> ...? Another approach? There are links in the Upgrade Center for a Migration Webinar but it doesn't seem to exist from what I can ascertain.