Blackberry app submit

I try to submit app in app world, when I try to submit app with this .alx file it says that is not good

what is wrong?

<loader version="1.0">
<application id="AppTest">
    <name >
        AppTest
    </name>
    <description >
        AppTest
    </description>
    <version >
        1.5
    </version>
    <vendor >
        Vendor
    </vendor>
    <copyright >
        Copyright (c) 2011 Vendor
    </copyright>
    <fileset Java="1.54" _blackberryVersion="[5.0.0)">
        <directory >
            5.0.0
        </directory>
        <files >
            AppTest.cod
        </files>
    </fileset>
</application>

you can submit app to the appworld by just submitting the signed .cod file so just try to submit using .cod file.