Unable to compile project on Android whereas same project is working fine on iOS

cocos2d-x C++
#1

Hi Guys,

I am trying to Port CocosDragon project, like I have seen many people are trying to do. http://code.zynga.com/2012/10/creating-a-game-with-cocosbuilder/

For starting, I create only MainMenuLayer and able to successfully compile over the iOS platform. However, if I try to use same code on Android platform. It fails to compile. For troubleshooting, I tried to compile TestCpp over Android and it is working fine.
I am unable to dig further that why my project source code is not compiling over Android.

I am getting following error:-

...Classes/MainMenuLayer.h:24: undefined reference to `vtable for MainMenuLayer'

I have attached the code files for the reference.

Any quick help will be highly appreciated.


MainMenuLayer.h.zip (0.7 KB)


MainMenuLayer.cpp.zip (0.8 KB)


MainMenuLayerLoader.h.zip (0.5 KB)

#2

I have no idea.
Everything is ok.
Try to implement constructor in .cpp, but i am not sure.

#3

Hi Minggo,

I already tried the method about implementing the constructor in cpp but still it is not working and then the error message is undefined reference to `MainMenuLayer::MainMenuLayer()'

Any other idea?

Thanks
Paras

#4

I have placed the code at github for anyone who like to try the bug: https://github.com/CodeSnooker/DragonFly.git

#5

Have you tried removing the constructor declaration in the .h file?

You have declared it in .h but not implemented it in the cpp.

#6

I already marked {} in front of constructor in .h so it should be fine.

I tried all the possible combinations so far.

I guess the problem is somehow, NDK is not able to recognise these new files. Any suggestion about how to check that?

#7

Did you add the .cpp file to the android.mk LOCAL_SRC_FILES list?

#8

Did you modify the android.mk file in your android project to include your new created .cpp files?

#9

No. Let me try it

#10

Thanks Adam, Thanks Matthijis!

It works now. I didn’t know that I have to explicitly mention all the ccp files. I thought script automatically search in Classes folder.

Thanks a lot!
Paras

#11

That got me the first few times (and the similar vtable error you get with constructor / destructor).