AAPT: error: duplicate value for resource 'attr/textStyle' with config ''.

[ten-skv]

.gradle/caches/transforms-2/files-2.1/717a955ea77a238245f5bda828ae15c0/core-5.2.4/res/values/values.xml:3:5
AAPT: error: duplicate value for resource 'attr/textStyle' with config ''.

    <!-- Calendar configuration -->
    <attr format="integer" name="numberOfVisibleDays"/>
    <attr format="boolean" name="restoreNumberOfVisibleDays"/>
    <attr format="boolean" name="showFirstDayOfWeekFirst"/>
    <attr format="boolean" name="showCurrentTimeFirst"/>
    <attr format="boolean" name="arrangeAllDayEventsVertically"/>

    <!-- Header bottom line -->
    <attr format="boolean" name="showHeaderBottomLine"/>
    <attr format="color" name="headerBottomLineColor"/>
    <attr format="dimension" name="headerBottomLineWidth"/>

    <!-- Header bottom shadow -->
    <attr format="boolean" name="showHeaderBottomShadow"/>
    <attr format="color" name="headerBottomShadowColor"/>
    <attr format="dimension" name="headerBottomShadowRadius"/>

    <!-- Time column -->
    <attr format="color" name="timeColumnTextColor"/>
    <attr format="color" name="timeColumnBackgroundColor"/>
    <attr format="dimension" name="timeColumnPadding"/>
    <attr format="dimension" name="timeColumnTextSize"/>
    <attr format="boolean" name="showMidnightHour"/>
    <attr format="boolean" name="showTimeColumnHourSeparator"/>
    <attr format="integer" name="timeColumnHoursInterval"/>

    <!-- Time column separator -->
    <attr format="boolean" name="showTimeColumnSeparator"/>
    <attr format="color" name="timeColumnSeparatorColor"/>
    <attr format="dimension" name="timeColumnSeparatorStrokeWidth"/>

    <!-- Time range -->
    <attr format="integer" name="minHour"/>
    <attr format="integer" name="maxHour"/>

    <!-- Header row -->
    <attr format="color" name="headerBackgroundColor"/>
    <attr format="dimension" name="headerPadding"/>
    <attr format="dimension" name="headerTextSize"/>
    <attr format="color" name="headerTextColor"/>
    <attr format="color" name="todayHeaderTextColor"/>
    <attr format="color" name="weekendHeaderTextColor"/>

    <!-- Week number -->
    <attr format="boolean" name="showWeekNumber"/>
    <attr format="color" name="weekNumberTextColor"/>
    <attr format="dimension" name="weekNumberTextSize"/>
    <attr format="color" name="weekNumberBackgroundColor"/>
    <attr format="dimension" name="weekNumberBackgroundCornerRadius"/>

    <!-- Event chips -->
    <attr format="dimension" name="eventCornerRadius"/>
    <attr format="dimension" name="eventTextSize"/>
    <attr format="boolean" name="adaptiveEventTextSize"/>
    <attr format="color" name="eventTextColor"/>
    <attr format="dimension" name="eventPaddingHorizontal"/>
    <attr format="dimension" name="eventPaddingVertical"/>
    <attr format="color" name="defaultEventColor"/>
    <attr format="dimension" name="allDayEventTextSize"/>

    <!-- Event margins -->
    <attr format="dimension" name="columnGap"/>
    <attr format="dimension" name="overlappingEventGap"/>
    <attr format="dimension" name="eventMarginVertical"/>
    <attr format="dimension" name="singleDayHorizontalPadding"/>

    <!-- Colors -->
    <attr format="color" name="dayBackgroundColor"/>
    <attr format="color" name="todayBackgroundColor"/>
    <attr format="color" name="pastBackgroundColor"/>
    <attr format="color" name="futureBackgroundColor"/>
    <attr format="color" name="pastWeekendBackgroundColor"/>
    <attr format="color" name="futureWeekendBackgroundColor"/>

    <!-- Hour height -->
    <attr format="dimension" name="hourHeight"/>
    <attr format="dimension" name="minHourHeight"/>
    <attr format="dimension" name="maxHourHeight"/>
    <attr format="boolean" name="showCompleteDay"/>

    <!-- Now line -->
    <attr format="boolean" name="showNowLine"/>
    <attr format="color" name="nowLineColor"/>
    <attr format="dimension" name="nowLineStrokeWidth"/>

    <!-- Now line dot -->
    <attr format="boolean" name="showNowLineDot"/>
    <attr format="color" name="nowLineDotColor"/>
    <attr format="dimension" name="nowLineDotRadius"/>

    <!-- Hour separators -->
    <attr format="boolean" name="showHourSeparator"/>
    <attr format="color" name="hourSeparatorColor"/>
    <attr format="dimension" name="hourSeparatorStrokeWidth"/>

    <!-- Day separators -->
    <attr format="boolean" name="showDaySeparator"/>
    <attr format="color" name="daySeparatorColor"/>
    <attr format="dimension" name="daySeparatorStrokeWidth"/>

    <!-- Scrolling -->
    <attr format="boolean" name="horizontalScrollingEnabled"/>

    <attr format="float" name="xScrollingSpeed"/>
    <attr format="boolean" name="verticalFlingEnabled"/>
    <attr format="boolean" name="horizontalFlingEnabled"/>
    <attr format="integer" name="scrollDuration"/>

    <!-- Font -->
    <attr format="string" name="fontFamily"/>
    <attr name="typeface">
        <enum name="normal" value="0"/>
        <enum name="sans" value="1"/>
        <enum name="serif" value="2"/>
        <enum name="monospace" value="3"/>
    </attr>
    <attr name="textStyle">
        <flag name="normal" value="0"/>
        <flag name="bold" value="1"/>
        <flag name="italic" value="2"/>
    </attr>

</declare-styleable>