Why is there no pressure at the clutch, or fluid coming from slave cylinder?

What is your question?

I replaced the clutch slave and master cylinders myself. However, for some strange reason after replacing them and attempting to bleed the system, the clutch pedal won't build any pressure. Also, when opening the bleeder on the slave cylinder no fluid comes out, but I can feel air moving in and out with the bleeder fitting open if the clutch pedal is pumped. I don't understand what is causing the system to not bleed or gain pressure.