Hello, Eveyone
Currently my game working well with the cocos2dx-3-17.
But I want to downgrade the cocos engine as 3.12.
When I try this, I got error “fatal error: ‘platform/android/jni/JniHelper.h’ file not found”
How can I fix this issue?
Any advice would be help me.
Thanks.
Why are you downgrading?
3.12 is very old.
You can always download 3.12 and run cocos new to create a new project. Then reimport your resources/ and Classes/.
Thanks for your reply.
-Why are you downgrading?
I made android game using cocos 3.17.
But that game crashed in some device.
I checked some document about that issue.
So I decided to downgrade the cocos engine as 3.12.
- Yes, I downloaded the cocos2dx-3.12 and replaced it in my game.
But showing that error.
Yup just replacing the cocos2d folder will cause errors.
cocos new And reimport your classes and resources should achieve success.
Ok, I will follow your advice. Thank you very much.
Hello, slackmoehrle!
I get this error " cocos: command not found" when create new project using cocos3.12.
Here is my bash_profile image.
Can you please help me what I am missing?
Thanks.
Did you run download-deps.py?
Did you re-source your bash.profile?
Did you verify that cocos is indeed at the path in your bash.profile?
-Did you run download-deps.py?
Yes
-Did you resource your bash.profile?
Yes
-Did you verify that cocos is indeed at the path in your bash.profile?
Yes I checked the path in my bash.profile
I attached the structure image of directory that cocos3 .12 is located.
Then do an ls on tools/ and tools/cocos2dx-console and tools/cocos2dx-console/bin
That’s where cocos command should live. I suspect it’s not there. This is definitely a path issue
Yes
This direcoty “/tools/cocos2d-console” is empty.
I did get this 3.12 version in this url.
Is this not comportable version?
Where can I get correct reliable version of cocos2d 3.12?
Clone the GitHub repo
Check out the 3.12 branch.
git submodule update —init
download-deps.py
Re-source bash-profile
Ok, Thank you very much. 
Let us know how it goes.
I created new game project with cocos2dx 3.12.
Working well now.
I will migrate resources to this new project.
Thank you very much.
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