<html
    xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers"
    xmlns:be="http://typo3.org/ns/TYPO3/CMS/Backend/ViewHelpers"
    xmlns:core="http://typo3.org/ns/TYPO3/CMS/Core/ViewHelpers"
    data-namespace-typo3-fluid="true"
>

    <f:if condition="{errorClasses}">
        <f:variable name="errorClassesCount" value="{errorClasses -> f:count()}"/>
        <f:be.infobox
            title="{f:translate(key:'LLL:EXT:scheduler/Resources/Private/Language/locallang.xlf:msg.invalidTaskClass.infobox.title'