ProGuard: can’t find referenced class com.google.android.gms.R

by

Although adding this to proguard-project.txt file works, it keeps all classes.

-keep class com.google.android.gms.** { *; }
-dontwarn com.google.android.gms.**

I prefer this, which makes apk file size much smaller:

-keep public class com.google.android.gms.* { public *; }
-dontwarn com.google.android.gms.**

Also note up to date Google Play Proguard notification here: http://developer.android.com/google/play-services/setup.html#Proguard

-keep class * extends java.util.ListResourceBundle {
    protected Object[][] getContents();
}

-keep public class com.google.android.gms.common.internal.safeparcel.SafeParcelable {
    public static final *** NULL;
}

-keepnames @com.google.android.gms.common.annotation.KeepName class *
-keepclassmembernames class * {
    @com.google.android.gms.common.annotation.KeepName *;
}

-keepnames class * implements android.os.Parcelable {
    public static final ** CREATOR;
}

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