Error compiling protel dxp 2004 schematic??

[huji]

adding items to hidden net gnd

hi,
when i am compiling my schematic using protel dxp 2004 it will display several error sign saying:

1. Net NetR7_2 contains multiple Output Pins (Pin U2-2,Pin U2-4,Pin U2-6)
2. Component U2 SN74HCT04D has unused sub-part (4)
3. Adding items to hidden net GND
4. Adding hidden net
5. Net NetC1_1 has no driving source (Pin C1-1,Pin R3-2,Pin U1-11,Pin Y1-1)

what can i do so that these error wouldn't be display?? thanx.

 

[House_Cat]

contains multiple output pins

The messages are all warnings. You should check to make sure that you really want what it is warning you about - if you want the conditions listed in the warnings you can ignore them.

Each of the lines is telling you something about your schematic that MAY be wrong. It isn't telling you that it can't be done. The hidden net warning is probably the most significant. It means you have chosen not to display (to hide) certain pins in your schematic, and the software is connecting them to ground. When you make your board, those hidden pins will be connected to ground.

Warning 1 means that you have connected together three pins that are all designated as output pins - the software expects at least one input to be connected to outputs.
Warning 2 means you didn't use one of the subparts in a four subpart device.
Warning 3 means you have ground pins somewhere on some device that you have set as hidden and chosen not to display. Those hidden pins will be connected to ground on the PCB.
Warning 4 means you have other hidden pins that haven't been connected, so the software is creating a net for them - they will all be connected together on the PCB.
Warning 5 means that NetC1_1 has all load pins - the software is telling you to check and make sure you haven't left off a source to drive the loads.