I am using v4 compatibility package in my project, but when I try to export a signed app, I get the following message from Proguard. I've Googled the whole evening, but I didn't find the answer to solve this.
[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)
This is what I'm using in my proguard.cfg:
-dontwarn **CompatHoneycomb
-keep public class * extends android.support.v4.app.Fragment
More general is:
-dontwarn **CompatHoneycomb
-keep class android.support.v4.** { *; }
But it'll cause a larger APK size so only use if the first one isn't working.
It looks like some clases in android.support.v4 are not quite compatible with some classes in android. If you're sure this is not a problem, you can specify
-dontwarn android.support.v4.**
ProGuard will then ignore these problems and continue processing the code.
See the ProGuard manual > Troubleshooting > Warning: can't find referenced field/method
You should set the android:targetSdkVersion to an SDK >= honeycomb.
For information I am using this one
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="13"/>
来源：https://stackoverflow.com/questions/6560244/proguard-error-when-exporting-signed-app-using-android-support-v4-app-honeycomb