Fish Demo help

Ok I am trying to do the scripting but when i write it as it sais in the tutorial happens that:\
MyFishDemo/gameScripts/game.cs Line: 31 - parse error
>>> Advanced script error report. Line 31.
>>> Some error context, with ## on sides of error halt


And this is written in red:
//---------------------------------------------------------------------------------------------
// endGame
// Game cleanup should be done here.
//---------------------------------------------------------------------------------------------
function endGame()
{
sceneWindow2D.endLevel();
moveMap.pop();
}
function FishClass::onLevelLoaded(%this, %scenegraph)
{
%this.setLinearVelocityX(20)
}

Pls tell me what should I do!