调用cocos studio导出的资源,显示Read design size error!

我的步骤如下:
1、将cocos studio的res下文件拷贝到相应的ide中res文件夹中(新建ide工程时选择了相一致的分辨率);
2、修改project.josn文件:
{
“project_type”:“javascript”,
“debugMode”:1,
“showFPS”:true,
“frameRate”:60,
“id”:“gameCanvas”,
“renderMode”:0,
“engineDir”:“frameworks/cocos2d-html5”,
“modules”:
“cocos2d”,
“cocostudio”
],
“jsList”:
“src/resource.js”,
“src/BaseUtil/BaseInit.js”,
“src/BaseUtil/Mlog.js”,
“src/BaseUtil/BaseLayer.js”,
“src/MainLayer.js”,
“src/app.js”
]
}
3、修改main.js文件
cc.LoaderScene.preload(g_resources, function () {
cc.director.runScene(new MainScene());
}, this);
4、调用图层文件加载josn节点
var UIroot = this.setUIFile_JSON(resJSON.Main_JSON);
UIroot.setAnchorPoint(cc.p(0.5,0.5));
UIroot.setPosition(cc.p(this.getContentSize().width/2,this.getContentSize().height/2));
this.addChild(UIroot,1);

哪里有问题??