Same error here. Alex, could you add a comment to the file explaining the reason for the double "AntClasses" I've never seen it done that way before but after reading your explanation it does makes sense. I think having a note there is definitely helpful just in case someone sees it later on. Neil
-----Original Message----- From: Justin Mclean [mailto:jus...@classsoftware.com] Sent: October-25-14 3:05 AM To: dev@flex.apache.org Subject: Re: git commit: [flex-utilities] [refs/heads/develop] - FLEX-34605 cleanup Hi, >> - import AntClasses; AntClasses; >> + import AntClasses; > This one worries me. > I think you have to try 4.13 or FlexJS as all older SDKs are not using ant_on_air right now. Yep you're right 4.13 fails to install with this error: nullError: no processor for property at org.apache.flex.xml::XMLTagProcessor/processXMLTag() at org.apache.flex.xml::XMLTagProcessor/processChildren() at org.apache.flex.ant.tags.supportClasses::TaskHandler/execute() at org.apache.flex.ant.tags::Project/execute() at org.apache.flex.ant::Ant/processXMLFile() at InstallApacheFlex/runInstallerScript() at InstallApacheFlex/handleApacheFlexSDKZipFileUnzipComplete() no processor for property Posted just in case anyone else runs into it. Will revert. Justin