What is a easy way to start a fire in the fireplace. i can't get it to burn . can i put gas on the wood?

DON'T USE GASOLINE IN YOUR FIREPLACE! Try cutting a bunch of small strips off of the edge of one of your logs and build a pyramid out of them, put a few pieces of crumpled paper below that and light the paper. Wait until the pyramid of strips catches and then put the smallest log on top cut side down. That should get you going. For the future the next time you are at the store look for something called "fatwood" it looks like oversized popcicle sticks and comes in bundles of 25 or 50 it catches really easily and makes starting a fire a snap.

wad up some paper use fine sticks of wood almost tooth pick size, then a layer of pencil size then a layer of 1/2inch size start the fire & keep adding till it gets bigger or buy a box of fire starters

Are you sure the damper is open ?

You can use gas, lighter fluid, starter fluid but (obviously) BE CAREFUL !! Use smaller quantities, don't just dump the whole thing on & then throw a lit match on top. The fumes from the fluid will linger for a time afterwards. Try making some "kindling" material. Cut some of the wood into really small pieces, say one inch slices. Use some that are a little larger. Keep feeding the kindling material until you get a small fire going then, try burning one of the smaller pieces of wood to get an even larger flame. IF the wood is wet, DO NOT use it. It won't burn easily. It takes a little patience to get a decent fire going. Newspaper is OK as kindling, but it burns so quickly that it's almost worthless without some other type of kindling.