Upgrade from V4 to V5 problem

[cactus02]

I just upgrade from V4 to V5 !
I get this message : « The specified name conflict with an existing name or reserve name »

Actinic do not want to open !
What's my problem ?
Thank you !

[cactus02]

Ok. I found in the Knoledge Base !

I was a bit nervous !