the game demo can't run sucessfully.

[ghd214]

when run the game demo, the below issue is occur.

[23:00:09.122] TypeError: cc.Class is undefined @ http://localhost:8000/extensions/PluginX/plugins/SocialQQWeibo.js:1 [23:00:09.123] TypeError: cc.Class is undefined @ http://localhost:8000/extensions/PluginX/plugins/SocialQzone.js:1 [23:00:09.123] TypeError: cc.Class is undefined @ http://localhost:8000/extensions/PluginX/plugins/SocialTwitter.js:1 [23:00:09.123] TypeError: cc.Class is undefined @ http://localhost:8000/extensions/PluginX/plugins/SocialFacebook.js:1 [23:00:09.125] TypeError: cc.Layer is undefined @ http://localhost:8000/HelloHTML5World/src/myApp.js:27