Use Crystal report made uisng vs 2008(crystal report 10) in crystal report viewer 13 in ASP.Net

what happens if i build web app (.net 3.5, vs 2008) with crystal report basic for vs 2008 (cr basic 10) and i publish it in server which using crystal report viewer 13?

can it runs smoothly? if error what can i do?must i upgrade my crystal report?