I also had same issue as urs. And sollved this way. I creared new project and added all refrences of crystal shown in assamblies. And work fine. Its not logical. If u do it with ur existing projects and solutions it will not work. I think its bug of crystal reports. Really illogical but logic dosent work all time.

Create new project for crystal reports. Add all refrences for crystal reports dlls

Terracopy.