air 4.0 package apk error when used proguard SDK jar.

eg :

sdk.jar

com

  |-core

    |-a.class

    |-A.class

     |-b.class

package a apk then.

error

Class "com.core.a " is not found

uncompile the apk.

com

  |-core

    |-A.smali

    |-b.smali

has missing a.smali