前几周还是好好的，现在打包不成功，求大神解救
[proguard] Warning: library class android.webkit.WebView depends on program class android.net.http.SslCertificate
[proguard] Warning: library class android.webkit.WebView depends on program class android.net.http.SslCertificate
[proguard] Warning: library class android.webkit.WebViewClient depends on program class android.net.http.SslError
[proguard] Note: there were 7 references to unknown classes.
[proguard] You should check your configuration for typos.
[proguard] Note: there were 163 unkept descriptor classes in kept class members.
[proguard] You should consider explicitly keeping the mentioned classes
[proguard] (using ‘-keep’).
[proguard] Note: there were 15 unresolved dynamic references to classes or interfaces.
[proguard] You should check if you need to specify additional program jars.
[proguard] Note: there were 9 accesses to class members by means of introspection.
[proguard] You should consider explicitly keeping the mentioned class members
[proguard] (using ‘-keep’ or ‘-keepclassmembers’).
[proguard] Warning: there were 4 instances of library classes depending on program classes.
[proguard] You must avoid such dependencies, since the program classes will
[proguard] be processed, while the library classes will remain unchanged.
BUILD FAILED
C:\code\tools\Android-SDK\tools\ant\build.xml:871: Please correct the above warnings first.