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android – ant debug, and sdk.dir

Posted by: admin June 15, 2020 Leave a comment


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

/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.

How to&Answers:

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.

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