How to import cocos2dxHelper in cocos2d-x 3.0 beta?

cocos2d-x C++
#1

I created a java source in my project based on cocos2d-x 3.0 alpha0 which includes :
import org.cocos2dx.lib.Cocos2dxHelper;
for the purpose to using ‘Cocos2dxHelper.getActivity()’.

Now I want to move my project to 3.0 beta, but it report an error with
import org.cocos2dx.lib.Cocos2dxHelper;

How to fix the error?

#2

This class still exists.
I guess something is wrong in your configuration？

#3

Rao ZiJian wrote:

This class still exists.
I guess something is wrong in your configuration？

What new configuration about Cocos2dxHelper should I add on v3.0 beta? It all works fine on v3.0 alpha.

#4

In eclipse your project property -> Android, check the cocos2dx Library reference is tick.
As the pictures shows in my file.

#5

Rao ZiJian wrote:

In eclipse your project property -> Android, check the cocos2dx Library reference is tick.
As the pictures shows in my file.

I found cocos2dx Library reference is wrong in my project.
How to edit it? I click Add button but it cannot choose any folder.

#6

I don’t really understand why you cannot choose any folder.
Try to delete the older folder, then maybe you can add it

#7

Rao ZiJian wrote:

I don’t really understand why you cannot choose any folder.
Try to delete the older folder, then maybe you can add it

I click Add button and a dialog appears but I cannot find any button on it.