Loft using multiple profiles + guide curve error

Hi guys,

As you see in the pic below im suing 4 profiles to tell solidword how to create this "funnel shaped" part which can extend later on because of the profile (to be made out of silicone).

I want solidworks to figure out by itself how to merge the different profiles and smooth out the transitions between one to another untill the 4th profiles which is a simple circle.

Tried using loft but god the following error (pic).

Help?

SolidworksParts And Features