The documentation on the wiki says to register the Quartz.NET facility like this:
<castle>
<facilities>
<facility id="startable.facility" type="Castle.Facilities.Startable.StartableFacility, Castle.Windsor"/>
<facility id="quartznet" type="Castle.Facilities.QuartzIntegration.QuartzFacility, Castle.Facilities.QuartzIntegration">
<quartz>
<item key="quartz.scheduler.instanceName">XmlConfiguredInstance</item>
<item key="quartz.threadPool.type">Quartz.Simpl.SimpleThreadPool, Quartz</item>
<item key="quartz.threadPool.threadCount">5</item>
<item key="quartz.threadPool.threadPriority">Normal</item>
<item key="quartz.plugin.xml.type">Quartz.Plugin.Xml.JobInitializationPlugin, Quartz</item>
<item key="quartz.plugin.xml.overwriteExistingJobs">true</item>
<item key="quartz.plugin.xml.scanInterval">10</item>
</quartz>
</facility>
</facilities>
</castle>
http://docs.castleproject.org/Contrib.Quartz-Net-integration.ashx
This is because from Windsor 3.0 the type attribute is now required for the facility configuration/
https://github.com/castleproject/Windsor/commit/40f8eefb16226fb279389b732ab89c8c55853ba5