Android问题集锦:解决Android多个Support版本报错(library中也有相同的Support包)

build.gradle中support v7包  报红

Found versions 27.1.1, 23.1.1. Examples include com.android.support:animated-vector-drawable:27.1.1 and com.android.support:design:23.1.1 more... (Ctrl+F1)

https://stackoverflow.com/questions/49345699/all-com-android-support-libraries-must-use-the-exact-same-version-specification

compile ("com.roughike:bottom-bar:2.1.2") {
    exclude group: 'com.android.support'
    exclude module: 'appcompat-v7'
    exclude module: 'design'
  }