Executing build.xml... /Users/dhyde/Library/Application Support/Titanium/mobilesdk/osx/3.1.0.v20130328130851/module/android/build.xml:326: The following error occurred while executing this line: /Users/dhyde/Library/Application Support/Titanium/mobilesdk/osx/3.1.0.v20130328130851/module/android/build.xml:281: exec returned: 2 You may need to install the Command Line Tools package through XCode, in case you haven't done so yet.