Push/Pull not raising my walls

Hello, I’m new to sketch up. So I’m in a learning yet working mode. I’ve traced a plan in Sketchup. However, when I try to Push/pull my walls, they are not moving. The floors are responding but no walls. What could I have possible done wrong?

Without seeing your model or at least a screen shot we can only guess.
You can add images and models directly to your posts using the upload button in the message window.

Possibly the edges of the walls you have traced do not form close loops that are coplanar (on the same plane).