Gas grill won't pallid, how do I fix it? There is propane and the tank is on, but when you hit...

There is propane and the tank is on, but when you hit the ignition button, nought happens, but you can smell the gas. What should I do?
Answers:    consent to the gas clear and use a match or one of those concrete long bic lighteres if you have one. Those button igniters are unwanted items
Usually there is a small mobile that powers the spark. Replace it, its usually a double A