Hello Kingsley Magnus-Eweka,
Yes, the examples in Q2 release are build against the SL2 runtime and are using the SL2 VS tools projects.
The only way to have the SL3 binaries is if have downloaded them from the internal releases.
What I suspect is that you are using the Telerik SL2 binaries with the SL3 runtime - which is basically OK, but the example projects are just not working in this scenario.
Anyway - just wait for a few hours until the user accounts are populated with the Q2.SP1 release and you will get the examples build against SL3 framework and you should not have any problems ;-).
If such arise - please let us know!
All the best,
the Telerik team