Error [net0081]

[kosh]

Hi,
can you please help me understand what is wrong here?
I learned Orcad some time ago but i can barealy recall it now.

when i am runing the create netlist for the Pspice simulation i get this errors:
Creating PSpice Netlist
Writing PSpice Flat Netlist C:\PROGRAM FILES\ORCAD\ARCH\ALU-ALU.net
ERROR [NET0081] Bad bus/pin name h-block 8bitFA pin Sum[7..0]
ERROR [NET0081] Bad bus/pin name h-block 8bitOR pin Out[7..0]
ERROR [NET0081] Bad bus/pin name h-block 8bitMUX pin InA[7..0]
ERROR [NET0081] Bad bus/pin name h-block 8bitMUX pin InB[7..0]


My project has 3 Hierarchical blocks.
InA,InB are the inputs to 8bitMUX (1st block)
Out is the Output of the 8bitOR(2nd block) and the 8bitMux
Sum is the Output of the 8bit FullAdder(3rd block)

Any help would pe appriciated.

Thanks ahead.

(the project file is attached)