问题
升级到Android Support Library version 26.0.0 报错：
..\build\intermediates\res\merged\debug\values-v26\values-v26.xml
Error:(5, 21) No resource found that matches the given name: attr 'android:keyboardNavigationCluster'.
Error:(5, 21) No resource found that matches the given name: attr 'android:keyboardNavigationCluster'.
这个应该是Android Support Library version 26的bug，参考Issue Tracker。
解决方案
buildToolVersion修改为26.0.1，各相关版本如下：
compileSdkVersion 26
buildToolsVersion "26.0.1"
targetSdkVersion 26
依赖
compile 'com.android.support:appcompat-v7:26.0.1'
compile 'com.android.support:design:26.0.1'
compile 'com.android.support:recyclerview-v7:26.0.1'
compile 'com.android.support:cardview-v7:26.0.1'