Probably you are using custom master page template. Please make sure that there is tag
<WebPartPages:SPWebPartManager runat="server"/>
inside <form> tag in the master page.When I add Virto web part to a SP page I get error Error=The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases. Print
Modified on: Mon, Oct 27, 2014 at 12:11 AM
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