error: duplicate value for resource ‘attr/layout_anchorGravity‘ with config ‘‘. #134

implementation 'com.android.support:design:23.4.0'implementation 'com.android.support.constraint:constraint-layout:2.0.4'

两个依赖资源值有重复,去掉一个就好了

参考 ​​https://github.com/tom-anders/Easy_xkcd/issues/143​​