I have this...but i cant run the simulation... I think that it has to do with the librarys but i dont know...can you help me???

 

Hello,

I moved your post from the hijack you made:
Pspice simulation problem

Bertus

 

What is your circuit suppose to do?

What "measurements" have you made?

 

What do you mean it won't run?

 

...can you help me???

Frankly, no. Because I don't know why you believe it doesn't work. My crystal ball is in for repairs.

How about you tell us what makes you think it doesn't work?

 

This is an exercise for my school. In the 4 resistances in reality there are 4 leds and they switch on & off alternately. Here you have to put 4 V markers before resistances to confirm that. My simulation doesn't run. When i put the play just opens the window and do nothing. In the informations say that the simulation stopped due to error.Please help me..thank you!

 

That's like saying my car won't run. What's wrong.
So what's the "error" that stops the simulation?

 

You appear to have the supply voltage V1 set at 0V. So, no surprise it 'won't run' .

 

This is an exercise for my school. In the 4 resistances in reality there are 4 leds and they switch on & off alternately. Here you have to put 4 V markers before resistances to confirm that. My simulation doesn't run. When i put the play just opens the window and do nothing. In the informations say that the simulation stopped due to error.Please help me..thank you!

So why didn't you put in the LEDs?

So, did you do any troubleshooting like I suggested in my previous post or were you waiting for Alex t to give you an answer?