Ich bekomme bei ProGuard immer folgenden Fehler:

[2012-05-19 17:50:13 - xxx] Warning: there were 13 unresolved references to      program class members.
[2012-05-19 17:50:13 - xxx]          Your input classes appear to be     inconsistent.
[2012-05-19 17:50:13 - xxx]          You may need to recompile them and try again.
[2012-05-19 17:50:13 - xxx]          Alternatively, you may have to specify the option 
[2012-05-19 17:50:13 - xxx]          '-dontskipnonpubliclibraryclassmembers'.
[2012-05-19 17:50:13 - xxx] Error: Please correct the above warnings first.
[2012-05-19 17:55:40 - xxx] Proguard returned with error code 1. See console
[2012-05-19 17:55:40 - xxx] Note: there were 239 duplicate class definitions.
[2012-05-19 17:55:40 - xxx] Warning: org.apache.http.entity.mime.FormBodyPart:    can't find superclass or interface org.apache.james.mime4j.message.BodyPart
[2012-05-19 17:55:40 - xxx] Warning: org.apache.http.entity.mime.HttpMultipart: can't find superclass or interface org.apache.james.mime4j.message.Multipart
[2012-05-19 17:55:40 - xxx] Warning: org.apache.http.entity.mime.MinimalField: can't find superclass or interface org.apache.james.mime4j.parser.Field

Meine proguard.cfg Datei ist:

-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }
-keep class com.actionbarsherlock.** { *; }
-keep interface com.actionbarsherlock.** { *; }

-keepattributes *Annotation*
-keepattributes SourceFile, LineNumberTable

-libraryjars /libs/crittercism_v2_0_1.jar
-libraryjars /libs/dropbox-android-sdk-1.2.2.jar
-libraryjars /libs/FlurryAgent.jar
-libraryjars /libs/httpmime-4.0.3.jar
-libraryjars /libs/json_simple-1.1.jar

Ich habe bereits alle meine externen Bibliotheken hinzugefügt. Warum erhalte ich immer diese Fehler? Kann jemand helfen?

EDIT 21.05.2012: Das Problem ist, wenn Sie "Dropbox" jar AND "ActionBarSherlock" hinzufügen. Wenn ich nur "Dropbox" hinzufüge, habe ich kein Problem. Wenn ich nur "ActionBarSherlock" hinzufüge, habe ich kein Problem. Aber wenn ich beides hinzufüge, würde ich die obigen Fehler bekommen.