Lua 播放视频问题

local video = cc.Layer:create();
local function onVideoEventCallback(sener, eventType)
if eventType == ccexp.VideoPlayerEvent.COMPLETED then
–播放完毕以后
print(“播放完毕了”)
end
end
local videoPlayer = ccexp.VideoPlayer:create()
videoPlayer:setPosition(500,800);
videoPlayer:setAnchorPoint(cc.p(0.5, 0.5));
videoPlayer:setContentSize(cc.size(200,200));
videoPlayer:addEventListener(onVideoEventCallback)
video:addChild(videoPlayer)
这个老是报 local videoPlayer = ccexp.VideoPlayer:create()这个错误,这个是从官方的例子中差不多的修改过来的

右面我也加了videoPlayer:setFileName(“cocosvideo.mp4”)
videoPlayer:play()
但是还是加载不了