学校的实验居然安排用protel99做图，可我一点也没有接触过这个软件，勉强完成连接，可是有一屏幕错误。我们做的是6116（2kX8）扩展成8KX16的存储器，用它做出pcb，哎，真的不会，对了，还有50pin的cpu（2），一个74ls138（1），下面有很多错误，不知道是什么意思，请大家指教（u？是6116，这些都不知道干吗用的，暂时叫着名字）
1 Error: Pin order data (PINS=1:[<pins>]) not in READ ONLY field 4. Pins sorted by pin-name.
1 Error: Part type must be entered in READ ONLY field 1: type=<part type>(<spice prefix>)
1 Error: Netlist data must be entered in READ ONLY field 5: netlist=<netlist data>
2 Error: Pin order data (PINS=1:[<pins>]) not in READ ONLY field 4. Pins sorted by pin-name.
2 Error: Part type must be entered in READ ONLY field 1: type=<part type>(<spice prefix>)
2 Error: Netlist data must be entered in READ ONLY field 5: netlist=<netlist data>
U? Error: Pin order data (PINS=1:[<pins>]) not in READ ONLY field 4. Pins sorted by pin-name.
U? Error: Part type must be entered in READ ONLY field 1: type=<part type>(<spice prefix>)
U? Error: Netlist data must be entered in READ ONLY field 5: netlist=<netlist data>
U? Error: Pin order data (PINS=1:[<pins>]) not in READ ONLY field 4. Pins sorted by pin-name.
U? Error: Duplicate Designator ATTRIBUTE entered
U? Error: Part type must be entered in READ ONLY field 1: type=<part type>(<spice prefix>)
U? Error: Netlist data must be entered in READ ONLY field 5: netlist=<netlist data>
U? Error: Pin order data (PINS=1:[<pins>]) not in READ ONLY field 4. Pins sorted by pin-name.
U? Error: Duplicate Designator ATTRIBUTE entered
U? Error: Part type must be entered in READ ONLY field 1: type=<part type>(<spice prefix>)
U? Error: Netlist data must be entered in READ ONLY field 5: netlist=<netlist data>
U? Error: Pin order data (PINS=1:[<pins>]) not in READ ONLY field 4. Pins sorted by pin-name.
U? Error: Duplicate Designator ATTRIBUTE entered
U? Error: Part type must be entered in READ ONLY field 1: type=<part type>(<spice prefix>)
U? Error: Netlist data must be entered in READ ONLY field 5: netlist=<netlist data>
U? Error: Pin order data (PINS=1:[<pins>]) not in READ ONLY field 4. Pins sorted by pin-name.
U? Error: Duplicate Designator ATTRIBUTE entered
U? Error: Part type must be entered in READ ONLY field 1: type=<part type>(<spice prefix>)
U? Error: Netlist data must be entered in READ ONLY field 5: netlist=<netlist data>
U? Error: Pin order data (PINS=1:[<pins>]) not in READ ONLY field 4. Pins sorted by pin-name.
U? Error: Duplicate Designator ATTRIBUTE entered
U? Error: Part type must be entered in READ ONLY field 1: type=<part type>(<spice prefix>)
U? Error: Netlist data must be entered in READ ONLY field 5: netlist=<netlist data>
U? Error: Pin order data (PINS=1:[<pins>]) not in READ ONLY field 4. Pins sorted by pin-name.
U? Error: Duplicate Designator ATTRIBUTE entered
U? Error: Part type must be entered in READ ONLY field 1: type=<part type>(<spice prefix>)
U? Error: Netlist data must be entered in READ ONLY field 5: netlist=<netlist data>
U? Error: Pin order data (PINS=1:[<pins>]) not in READ ONLY field 4. Pins sorted by pin-name.
U? Error: Duplicate Designator ATTRIBUTE entered
U? Error: Part type must be entered in READ ONLY field 1: type=<part type>(<spice prefix>)
U? Error: Netlist data must be entered in READ ONLY field 5: netlist=<netlist data> | 
