Error Loading image @ 'dxDrawImage' [filename.png]

[Tony Brand]

Hi
my meta is this:
 

<meta>
	<script src="client.lua" type="client" />
	<script src="server.lua" type="server" />
	<file src="Data/filename.png" />
</meta>

and this is my client side code:
 

	local seconds = getTickCount() / 1000
	local angle = math.sin(seconds) * 80
	dxDrawImage ( screenWidth/2 - 50, 0, 100, 240, 'filename.png', angle, 0, -120 )

but it says Error Loading image @ 'dxDrawImage' [filename.png] in Debug Box! where i did wrong? it is just a simple wiki example that i used

[N3xT]

dxDrawImage ( screenWidth/2 - 50, 0, 100, 240, 'Data/filename.png', angle, 0, -120 )