Hi, With TLF environment variables work fine.
On OSX I have the following: TLF_HOME=/Users/justinmclean/Documents/ApacheFlexTLFGit/ AIR_HOME=/Users/justinmclean/Documents/air/mac/3.1/ PLAYERGLOBAL_HOME=/Users/justinmclean/Documents/player/ FLASHPLAYER_DEBUGGER=/Users/justinmclean/Documents/Adobe Flash Builder 4.6/Apache Flex/in/player/11.1/mac/Flash Player Debugger.app/Contents/MacOS/Flash Player Debugger PIXELBENDER_HOME=/Applications/Utilities/Adobe Utilities-CS5.localized/Pixel Bender Toolkit 2/ ADOBE_EXTENSION_MANAGER=/Applications/Adobe Extension Manager CS5/Adobe Extension Manager CS5.app/Contents/MacOS/Adobe Extension Manager CS5 ANT_HOME=/usr/share/ant My flex home is: /Users/justinmclean/Documents/ApacheFlexDevelopGit Not all of these are required to be set to build the SDK, but are required to make a release and/or run the mustella tests. You're correct about the build.properties files I've updated the values in that and checked into develop. Thanks, Justin