CODEWITHSUNDEEP
androidproguard
Adil Hussain
Adil Hussain

Reputation: 32103

Can't find referenced class / Can't find referenced method

I thought I kind of understood proguard keep rules but I guess I don't! I have some rules of the following form in my proguard configuration file:

-keep class de.neom.neoreadersdk.** { *; }
-keep class org.joda.** { *; }
-keep class com.google.** { *; }
-keep class android.** { *; }

I'd expect all classes and class members in the above packages to not be obfuscated (i.e. for the names to not be modified by proguard). However, I'm seeing the following warnings (and lots more besides) when proguard is run:

... [proguard] Warning: com.google.android.gms.internal.es: can't find referenced method 'void setMediaPlaybackRequiresUserGesture(boolean)' in class android.webkit.WebSettings

... [proguard] Warning: de.neom.neoreadersdk.Viewfinder14View$AdView: can't find referenced class android.webkit.JavascriptInterface

... [proguard] Warning: org.joda.time.DateMidnight: can't find referenced class org.joda.convert.FromString

Should I be worried by these warnings? What rules should I be adding to my proguard configuration to correct the issues that these warnings are alerting me to?

Upvotes: 1

Views: 2113

Answers (1)

Eric Lafortune
Eric Lafortune

Reputation: 45648

Some of your libraries are referring to methods or classes that are missing from the target run-time or from the other libraries, e.g. org.joda.convert.FromString. If your application works fine anyway, you can tell ProGuard it's okay. For instance:

-dontwarn org.joda.**

See the ProGuard manual > Troubleshooting > Warning: can't find referenced class.

Upvotes: 2

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