This problem appears when I’m trying to build and run Android project (on Ubuntu).
What I did:
I installed Oracle JDK 8, adjusted enviroment variables;
Installed AndroidStudio/SDK/NDK, updated it;
Installed dependencies for cocos.
Installed ant using sudo apt-get install ant;
Adjusted paths for cocos 2d-x (setup.py) and did source /home/user/.bashrc;
I’ve created project cocos new MyGame -p com.MyCompany.MyGame -l cpp -d ~/MyCompany;
Tried to build and run it: cocos run -s ~/MyCompany/MyGame -p android.