Hi,
When i refresh aem home page or fire any request to aem,
Aem itself write below exception in C:\AEM 6.4\crx-quickstart\logs\error.log
30.07.2019 17:22:13.529 *WARN* [192.168.200.160 [1564487533498] GET /mnt/overlay/granite/ui/content/shell/header/actions/pulse.data.json HTTP/1.1] com.adobe.granite.taskmanagement.impl.jcr.TaskAdapterFactory error adapting to Task
javax.jcr.ValueFormatException: [Property of node]= [value of property] is multi-valued.
Note- primery:Type of Above node is 'granite:Task'