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

匿名 (未验证) 提交于 2019-12-03 02:08:02

问题:

After some updates in Android SDK manager I try make signed apk and get this:

ProGuard: [] Warning: com.google.android.gms.auth.GoogleAuthUtil:    can't find referenced class com.google.android.gms.R ProGuard: [] Warning: com.google.android.gms.auth.GoogleAuthUtil:    can't find referenced class com.google.android.gms.R$string ... etc. 

If set -dontwarn com.google.android.gms.** compiling is OK. But after run I get error many reports like this (from many devices):

Caused by: android.view.InflateException: Binary XML file line #32:    Error inflating class com.google.android.gms.common.SignInButton 

On my devices all ok. Before update I have not ProGuard warnings and all work perfectly. How it fix?

回答1:

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; } 


回答2:

You need to ignore like you are compiling but you also need to keep the class so it can find it during runtime.

Add these two lines to your proguard configuration file:

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


回答3:

If you use proguard, you need to keep some GMS (Google Play Services) classes. Hopefully they are annotated with @com.google.android.gms.common.annotation.KeepName.

# Proguard config for project using GMS  -keepnames @com.google.android.gms.common.annotation.KeepName class     com.google.android.gms.**,     com.google.ads.**  -keepclassmembernames class     com.google.android.gms.**,     com.google.ads.** {     @com.google.android.gms.common.annotation.KeepName *; }  # Called by introspection -keep class     com.google.android.gms.**,     com.google.ads.**     extends java.util.ListResourceBundle {     protected java.lang.Object[][] getContents(); }   # This keeps the class name as well as the creator field, because the # "safe parcelable" can require them during unmarshalling. -keepnames class     com.google.android.gms.**,     com.google.ads.**     implements android.os.Parcelable {     public static final ** CREATOR; }  # com.google.android.gms.auth.api.signin.SignInApiOptions$Builder # references these classes but no implementation is provided. -dontnote com.facebook.Session -dontnote com.facebook.FacebookSdk -keepnames class com.facebook.Session {} -keepnames class com.facebook.FacebookSdk {}  # android.app.Notification.setLatestEventInfo() was removed in # Marsmallow, but is still referenced (safely) -dontwarn com.google.android.gms.common.GooglePlayServicesUtil 


回答4:

I came across a similar issue and eventually discovered that I had updated the Google Play Services module however I hadn't re-added the module to my main module in Android Studio. Adding that back in resolved my issues.



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