I am trying to change the Date Format on VF Page but it is giving me the following error
The value attribute on is not in a valid format. It must be a positive number, and of type Number, Date, Time, or Choice.
Here is my Code
<apex:outputText value="{0,date,MM'/'dd'/'yyyy}">
<apex:param value=" {!Score.Entry_Date__c}"/>
</apex:outputText>
Entry_Date__c
?