Android ProGuard settings to use with app that uses licensing server to not force close?

Question

I've seemingly tried every setting in various articles on the internet including excluding all of my classes through -keep public class.

What settings should be used to not force close? At this point if I could get obfuscation with nothing else would be fine.

Below are sample configurations I've tried and my app still force closes. Any ideas?
I followed this article as well as others: http://android-developers.blogspot.com/2010/09/proguard-android-and-licensing-server.html

Still no luck. Any help would be appreciated. Thanks

-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*

-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
-keep public class com.android.vending.licensing.ILicensingService

-keepclasseswithmembernames class * {
    native ;
}

-keepclasseswithmembernames class * {
    public (android.content.Context, android.util.AttributeSet); 
}

-keepclasseswithmembernames class * {
    public (android.content.Context, android.util.AttributeSet, int); 
}

-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}

---

Similar options:

-target 1.6 
-optimizationpasses 5 
-allowaccessmodification 
-dontusemixedcaseclassnames 
-dontskipnonpubliclibraryclasses 
-dontpreverify 
-verbose 
-dump class_files.txt 
-printseeds seeds.txt 
-printusage unused.txt 
-printmapping mapping.txt 

# The -optimizations option disables some arithmetic
# simplifications that Dalvik 1.0 and 1.5 can't handle. 

-optimizations !code/simplification/arithmetic 

-keep public class * extends android.app.Activity 
-keep public class * extends android.app.Application 
-keep public class * extends android.app.Service 
-keep public class * extends android.content.BroadcastReceiver 
-keep public class * extends android.content.ContentProvider 

-keep public class * extends View { 
public (android.content.Context); 
public (android.content.Context, android.util.AttributeSet); 
public (android.content.Context, android.util.AttributeSet, int); 
public void set*(...); 
} 

-keep public class com.android.vending.licensing.ILicensingService

-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}


-keep interface com.android.vending.licensing.*
-keep public interface com.android.vending.licensing.ILicenseResultListener
-keep public interface com.android.vending.licensing.ILicensingService
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
} 

Answer 1

Delete all compiled classes in the classes directory and rebuild was the answer. Something was obviously corrupt. Once I did that, it just worked!