小游戏，在cocos creator编写，运行正常，上传到微信开发者工具报错

Creator 2.x
#1

微信开发者工具报错

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Screenshot_2021-04-25-11-36-38-295_com.tencent.mm
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VM16 WAGame.js:2 SyntaxError: Unexpected end of JSON input
at JSON.parse ()
at r.onLoad (index.js:1)
at cocos2d-js-min.js:1
at r._invoke (cocos2d-js-min.js:1)
at r.invoke (cocos2d-js-min.js:1)
at r.activateNode (cocos2d-js-min.js:1)
at r._activate (cocos2d-js-min.js:1)
at define.70.cc.Director.runSceneImmediate (cocos2d-js-min.js:1)
at cocos2d-js-min.js:1
at cocos2d-js-min.js:1
errorReport @ VM16 WAGame.js:2
thirdErrorReport @ VM16 WAGame.js:2
(anonymous) @ VM16 WAGame.js:2
f @ VM30 WAGameSubContext.js:2
(anonymous) @ VM30 WAGameSubContext.js:2
setTimeout (async)
(anonymous) @ VM30 WAGameSubContext.js:2
callInNextTick @ cocos2d-js-min.js:1
define.69.cc._throw @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
invoke @ cocos2d-js-min.js:1
activateNode @ cocos2d-js-min.js:1
_activate @ cocos2d-js-min.js:1
runSceneImmediate @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ VM30 WAGameSubContext.js:2
setTimeout (async)
(anonymous) @ VM30 WAGameSubContext.js:2
callInNextTick @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
onComplete @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
onComplete @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
onComplete @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
onComplete @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
onComplete @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
onComplete @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
onComplete @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
onComplete @ cocos2d-js-min.js:1
(anonymous) @ cocos2d-js-min.js:1
(anonymous) @ cocos2d

#2

有没有哪位高手给看一下

#3

前两张是在微信开发者工具上，出现问题，第三张是在cocos creator上面运行的，看着是正常的

#4

有没有看到的

#5

微信开发者工具是严格模式，浏览器容错能力比较强，浏览器不报错不代表小程序不报错，比如你丢了资源，浏览器一般不会报错，小程序100%报错

#6

这种报错可以怎么定位是哪里问题吗？

#7

num_level_save这个关卡属性 定义的时候怎么定义的我看看

#8

JSON解析的时候不是字符串报错，这种错误浏览器是不会报错的，仔细检查下把

#9

这个我遇到过，老问题了这个，可能这个是你用了本地存储代码（sys.loadStroage.getItem()），你获取本地存储的代码的具体值的时候加个判断，列如
你存储了： cc.sys.localStorage.setItem.(‘demo’, example);
获取的时候加判断 if(!sys.loadStroage.getItem(‘demo’).example){
//执行你的操作
}