abc_screen_toolbar.xml:5:编译报错
Project\res\layout-v26\abc_screen_toolbar.xml:5: error: No resource identifier found for attribute 'keyboardNavigationCluster' in package
解决：直接进去abc_screen_toolbar.xml文件里面，把带有keyboardNavigationCluster的删掉！
Project\res\layout-v26\abc_screen_toolbar.xml:5: error: No resource identifier found for attribute 'keyboardNavigationCluster' in package
解决：直接进去abc_screen_toolbar.xml文件里面，把带有keyboardNavigationCluster的删掉！