The same problem. @Shusshu please update your library for current Android Studio and Gradle.

@kouhengsheng Please make a PR to fix the id.xml file

@albka1986 using gradle won't fix the actual issue but feel free to convert this maven project to gradle

@kouhengsheng can you fix this? or please tell your solution for this case

Same problem here. It is just, because this lines are not in the right way:

<item name="animator" type="id">false</item> <item name="date_picker_day" type="id">false</item> <item name="date_picker_header" type="id">false</item> <item name="date_picker_month" type="id">false</item> <item name="date_picker_month_and_day" type="id">false</item> <item name="date_picker_year" type="id">false</item> <item name="day_picker_selected_date_layout" type="id">false</item> <item name="done" type="id">false</item> <item name="month_text_view" type="id">false</item>

Item-Tags have to be like this:

<item name="animator" type="id" />

Please fix that, my app won't run, if it isn't fixed :-(