Hi there I just tried to build the FlexUnit 4.2 release from https://github.com/apache/flex-flexunit
Apparently there are a few typos which terminates the build script (when running 'ant' or 'ant package') because the Fluint and FlexUnit1Lib-SWCs cannot be downloaded: Files: * FlexUnit4Test/downloads.xml (Lines 241 and 294) o IS: <param name="srcUrl" value="https://github.com/flexunit/flexunit/raw/master/FlexUnit4Test/libs/"/> o SHOULD: <param name="srcUrl" value="https://github.com/flexunit/flexunit/raw/master/FlexUnit4Test/libs"/> * FlexUnit4FluintExtensions/downloads.xml (Line 112) o IS: <param name="srcUrl" value="https://github.com/flexunit/flexunit/raw/master/FlexUnit4Test/libs/"/> o SHOULD: <param name="srcUrl" value="https://github.com/flexunit/flexunit/raw/master/FlexUnit4Test/libs"/> Notice the trailing forward slash in the 'value'-property. Remove it and everything works smoothly. You probably already noticed this yourself, just wanted to make sure. Cheers Daniel http://www.tiefenauer.info