cocoscreator androifd打包apk后，运行黑屏报错，请大神赐教

[945629543 (zhang94264)]

我在浏览器或者引擎运行都是没问题的，就是打包后运行黑屏

01-18 04:22:45.971 25359-25383/org.cocos2d.helloworld E/jswrapper: ERROR: Uncaught TypeError: Cannot read property ‘length’ of null, location: src/cocos2d-jsb.js:0:0
STACK:
[0]_activateNodeRecursively@src/cocos2d-jsb.js:21351
[1]activateNode@src/cocos2d-jsb.js:21397
[2]_activate@src/cocos2d-jsb.js:8823
[3]runSceneImmediate@src/cocos2d-jsb.js:6939
[4]anonymous@src/cocos2d-jsb.js:7019
[5]anonymous@src/cocos2d-jsb.js:23765
[6]anonymous@src/cocos2d-jsb.js:19416
[7]anonymous@src/cocos2d-jsb.js:27497
[8]fireTimeout@jsb-adapter/jsb-builtin.js:2033
[9]tick@jsb-adapter/jsb-builtin.js:1995
[ERROR] (/Applications/CocosCreator.app/Contents/Resources/cocos2d-x/cocos/scripting/js-bindings/jswrapper/v8/Object.cpp, 521): Invoking function (0xab59d770) failed!

[BigBear]

@945629543

ERROR: Uncaught TypeError: Cannot read property ‘length’ of null, location: src/cocos2d-jsb.js:0:0
STACK: [0]_activateNodeRecursively@src/cocos2d-jsb.js:21351
[1]activateNode@src/cocos2d-jsb.js:21397
[2]_activate@src/cocos2d-jsb.js:8823
[3]runSceneImmediate@src/cocos2d-jsb.js:6939

看起来像是节点没有实例化成功，_children属性为空，在场景切换的时候崩溃了。

可以参考一下这个帖子，检查一下你在场景切换的时候是否做了一些特殊的事情？
https://forum.cocos.com/t/creator2-05-release/70832/4

[945629543 (zhang94264)]

谢谢大神啊，就是我吧apk打包放在了android平台上，进入应用然后我点击输入框，系统弹出键盘，可是这个键盘会把我的整个界面往上面移，看不到输入框啦，，这个该怎么办啊

[418500286 (爱玩游戏)]

@945629543

’ of null, location: src/cocos2d-jsb.js:0:0 STACK: [0]_activateNodeRecursively@src/cocos2d-jsb.js:21351 [1]activateNode@src/cocos2d-jsb.js:21397 [2]_activate@src/cocos2d-jsb.js:8823 [3]runSceneImmediate@src/cocos2d-jsb.js:6939 [4]anonymous@src/cocos2d-jsb.js:7019 [5]anonymous@src/cocos2d-jsb.js:23765

目前我们这边的导致的情况：版本升级，而且也有热更新，就会出现类似的状况。