“You must specify a value for this required field” error - SharePoint 2010
Step 1
Create a CSS class called hiddenpanel:
.hiddenpanel
{
visibility:hidden;
}
Step 2
Add following code in the MasterPage:
<asp:Panel runat="server" CssClass="hiddenpanel">
<h2>
<asp:ContentPlaceHolder id="PlaceHolderPageTitleInTitleArea" runat="server" />
</h2>
</asp:Panel>