Error de Proguard al exportar una aplicación firmada usando el paquete de compatibilidad de nido de abeja android.support.v4.app

Estoy utilizando el paquete de compatibilidad v4 en mi proyecto, pero cuando intento exportar una aplicación firmada, obtengo el siguiente mensaje de Proguard. He buscado en Google toda la noche, pero no encontré la respuesta para resolver esto.

[2011-07-03 01:46:29 - worldscopeApp] Proguard returned with error code 1. See console [2011-07-03 01:46:29 - worldscopeApp] Warning: android.support.v4.app.ActivityCompatHoneycomb: can't find referenced method 'void invalidateOptionsMenu()' in class android.app.Activity [2011-07-03 01:46:29 - worldscopeApp] Warning: android.support.v4.app.ActivityCompatHoneycomb: can't find referenced method 'void dump(java.lang.String,java.io.FileDescriptor,java.io.PrintWriter,java.lang.String[])' in class android.app.Activity [2011-07-03 01:46:29 - worldscopeApp] Warning: android.support.v4.view.MenuCompatHoneycomb: can't find referenced method 'void setShowAsAction(int)' in class android.view.MenuItem [2011-07-03 01:46:29 - worldscopeApp] You should check if you need to specify additional program jars. [2011-07-03 01:46:29 - worldscopeApp] Warning: there were 3 unresolved references to program class members. [2011-07-03 01:46:29 - worldscopeApp] Your input classes appear to be inconsistent. [2011-07-03 01:46:29 - worldscopeApp] You may need to recompile them and try again. [2011-07-03 01:46:29 - worldscopeApp] Alternatively, you may have to specify the options [2011-07-03 01:46:29 - worldscopeApp] '-dontskipnonpubliclibraryclasses' and/or [2011-07-03 01:46:29 - worldscopeApp] '-dontskipnonpubliclibraryclassmembers'. [2011-07-03 01:46:29 - worldscopeApp] java.io.IOException: Please correct the above warnings first. [2011-07-03 01:46:29 - worldscopeApp] at proguard.Initializer.execute(Initializer.java:308) [2011-07-03 01:46:29 - worldscopeApp] at proguard.ProGuard.initialize(ProGuard.java:210) [2011-07-03 01:46:29 - worldscopeApp] at proguard.ProGuard.execute(ProGuard.java:85) [2011-07-03 01:46:29 - worldscopeApp] at proguard.ProGuard.main(ProGuard.java:499) 

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 -dontwarn **CompatHoneycomb -keep public class * extends android.support.v4.app.Fragment 

 -dontwarn **CompatHoneycomb -keep class android.support.v4.** { *; } 

 -dontwarn android.support.v4.** 

 <uses-sdk android:minSdkVersion="4" android:targetSdkVersion="13"/>