I can't make my character jump

Getting Started Newbie Questions
#1

I am trying to make my character jump when the screen is touched but it keeps giving me errors . 

runner = display.newImage("runmann.gif") runner.x = 30 runner.y = 290 physics.addBody(runner, "dynamic", {density=.1, bounce=0.1, friction=.2, radius=12}) screenGroup:insert(runner)

function activateRunner( self, event ) self:applyForce(0, -3.5, self.x, self.y) end function touchScreen( event ) if event.phase == "began" then runner.enterFrame = activateRunner Runtime: addEventListener("enterFrame", Runner) end if event.phase == "ended" then Runtime: removeEventListener("enterFrame", Runner) end end function scene:enterScene(event) Runtime:addEventListener("touch", touchScreen) Runtime:addEventListener("collision", onCollision) end function scene:exitScene(event) Runtime:removeEventListener("touch", touchScreen) Runtime:removeEventListener("collision", onCollision) end

This is the error i’m getting 

Runtime error

addEventListener: listener cannot be nil: nil

stack traceback:

        [C]: in function ‘error’

        ?: in function ‘getOrCreateTable’

        ?: in function ‘addEventListener’

        ?: in function ‘addEventListener’

        C:\Users\Brandon\Documents\Corona Projects\run man\game.lua:53: in funct

ion <C:\Users\Brandon\Documents\Corona Projects\run man\game.lua:49>

        ?: in function <?:221>

I posted the function where the error is .

#2

“runner” and “Runner” are two different things in Lua, it is a case sensitive language. 

#3

This “Runner” function you are adding the listener doesn’t exist…

Runtime: addEventListener("enterFrame", Runner)
#4

I cleared that . But how do I make my character run 

#5

“runner” and “Runner” are two different things in Lua, it is a case sensitive language. 

#6

This “Runner” function you are adding the listener doesn’t exist…

Runtime: addEventListener("enterFrame", Runner)
#7

I cleared that . But how do I make my character run