I have a problem to generate the Android APK file.
When I run ant debug compilation work fine, but when I run ant debug
I have following error:
iMac:proj.android smartmind$ ant debug
Buildfile: /Users/smartmind/Works/Smallthing/cocos2d-x/samples/HelloCpp/proj.android/build.xml
BUILD FAILED
/Users/smartmind/Works/Smallthing/cocos2d-x/samples/HelloCpp/proj.android/build.xml:46: sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through an env var
Total time: 0 seconds
I don't know what is problem.
Your project should have a local.properties file with an sdk.dir line that points to where your Android SDK is installed:
# This file is automatically generated by Android Tools.
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
#
# This file must *NOT* be checked into Version Control Systems,
# as it contains information specific to your local configuration.
# location of the SDK. This is only used by Ant
# For customization when using a Version Control System, please read the
# header note.
sdk.dir=/opt/android-sdk-linux_x86
To create this file if it does not exist, run android update project -p ... where the ... is the path to your project.
i had the same problem, i resolve the issue using a -Dvar or VM argument.
ant debug -Dsdk.dir=$SDK_ROOT
where $SDK_ROOT is android SDK path
来源：https://stackoverflow.com/questions/13311666/ant-debug-and-sdk-dir