Complile ane with ant

I`m trying to compile ane with ant, but have this message:

[java] Missing implementation for platform: Android-ARM

My ant task:

<target name="compile.ane">    <java jar="${FLEX_HOME}/lib/adt.jar" fork="true">        <arg value="-package"/>        <arg value="-target"/>        <arg value="ane"/>        <arg value="commExtension.ane"/>        <arg value="extension.xml"/>        <arg value="-swc"/>        <arg value="commExtLib.swc"/>        <arg value="-platform Android-ARM -C android/ ."/>        <arg value="-platform default -C default/ ."/>    </java></target>

But if I compiling wiht command line, it`s ok:

adt -package -target ane commExtension.ane extension.xml -swc commExtLib.swc -platform     Android-ARM -C android . -platform default -C default

What i`m doing wrong?