SDK3.4 Error packaging the app [Fatal Error] :1:1: Content is not allowed in prolog

I am getting this error when I package the app with the command line sdk3.4.

I know this is an xml parsing error from the descriptor and the InfoAdditions section but I don't know really how to solve it.

Someone ?

        [exec] [Fatal Error] :1:1: Content is not allowed in prolog.

        [exec] java.io.IOException: PLIST generation failed due to SAX error:org.xml.sax.SAXParseException: Content is not allowed in prolog.

        [exec]           at com.adobe.air.Plist.newFromString(Plist.java:351)

        [exec]           at com.adobe.air.Plist.newFromFile(Plist.java:325)

        [exec]           at com.adobe.air.ipa.IPAOutputStream.setSDKVersion(IPAOutputStream.java:1067)

        [exec]           at com.adobe.air.ipa.IPAOutputStream.setPlatformSDKLocation(IPAOutputStream.java:969)

        [exec]           at com.adobe.air.ipa.IPAPackager.setDeviceSDKDirectory(IPAPackager.java:187)

        [exec]           at com.adobe.air.ADT.parseFileAndPathArguments(ADT.java:1423)

        [exec]           at com.adobe.air.ADT.parseDescriptorAndFileset(ADT.java:1474)

        [exec]           at com.adobe.air.ADT.parseInput(ADT.java:929)

        [exec]           at com.adobe.air.ADT.parsePackage(ADT.java:672)

        [exec]           at com.adobe.air.ADT.parseArgsAndGo(ADT.java:570)

        [exec]           at com.adobe.air.ADT.run(ADT.java:419)

        [exec]           at com.adobe.air.ADT.main(ADT.java:469)