[TxMt] ActionScript 3 bundle

Trying out the ActionScript 3 bundle, and I get this error when I try to build using mxmlc:

Loading configuration file: flex-config.xml

/Library/Application Support/TextMate/Bundles/ActionScript 3.tmbundle/ Support/bin/parse_mxmlc_out.rb:31:in `+': can't convert nil into String (TypeError) from /Library/Application Support/TextMate/Bundles/ ActionScript 3.tmbundle/Support/bin/parse_mxmlc_out.rb:31 from / Library/Application Support/TextMate/Bundles/ActionScript 3.tmbundle/ Support/bin/parse_mxmlc_out.rb:24:in `each' from /Library/Application Support/TextMate/Bundles/ActionScript 3.tmbundle/Support/bin/ parse_mxmlc_out.rb:24

I can't figure out what's causing this. Any suggestions?