VS error on aspx file Eval(), expecting semi-colon

Question

I am suddenly getting a CS1002 error on an aspx page when it was working fine. The code:

    <asp:DataList ID="StdColorGrid" runat="server"
        EnableViewState="false"
        AllowSorting="true"
        RepeatColumns="5"
        RepeatDirection="Horizontal"
        RepeatLayout="Table">
    <ItemTemplate>
    <div class="swatchBox" >
        <%#Eval("SwatchName") %><br />
        <%#Eval("RGB") %>
    </div>
    </ItemTemplate>
    </asp:DataList>

The compiler expects a semicolon on the <%#Eval("RGB")%> line, but no documentation I find specifies a semicolon when using Eval(). Any ideas? If I remove this line, it just reports the same error on the preceeding line.