Can't Generate (cannot see on view)

[LanggamanXavierMassed]

I tried to generate a layout but revit is telling me that there is no solution in that particular view.. I am using a student version of revit and the views I only have are for structural and architectural.. I am using mechanical template even. 

[LanggamanXavierMassed]

I see no pipes and fittings in the VG 

[s.borello]

What are you trying to do exactly?  Can you elaborate please?