How to learn problem classes Proguard means

Question

I get the following message from Proguard, and I suspect that the reason my application is not working is due to them. But I'm not sure what to do with the message:

Note: there were 2 references to unknown classes. You should check your configuration for typos. (http://proguard.sourceforge.net/manual/troubleshooting.html#unknownclass) Note: there were 7 classes trying to access enclosing classes using reflection. You should consider keeping the inner classes attributes (using '-keepattributes InnerClasses'). (http://proguard.sourceforge.net/manual/troubleshooting.html#attributes) Note: there were 233 unkept descriptor classes in kept class members. You should consider explicitly keeping the mentioned classes (using '-keep'). (http://proguard.sourceforge.net/manual/troubleshooting.html#descriptorclass) Note: there were 13 unresolved dynamic references to classes or interfaces. You should check if you need to specify additional program jars. (http://proguard.sourceforge.net/manual/troubleshooting.html#dynamicalclass) Note: there were 10 accesses to class members by means of introspection. You should consider explicitly keeping the mentioned class members (using '-keep' or '-keepclassmembers'). (http://proguard.sourceforge.net/manual/troubleshooting.html#dynamicalclassmember) Warning: there were 35 unresolved references to classes or interfaces. You may need to add missing library jars or update their versions. If your code works fine without the missing classes, you can suppress the warnings with '-dontwarn' options. (http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)