我使用了以前版本的Firebase,它工作得很好,但是当我尝试使用升级并将Firebase类更新为DatabaseReference时,它会显示错误而不能工作。// Top-level build file where you can add configuration options common to all sub-projects/modulesrepositories { } classpath
com.android.builder.dexing.DexArchiveMergerException:无法合并dex
// Top-level build file where you can add configuration options common to all sub-projects:gradle:3.0.0-beta6'
classpath "io.re