Sitecore 9.3
We upgraded from Sitecore 8.2.3 by installing vanilla 9.3
on a server and applying our update to it. When I try to view any page in experience editor I get the error
Error Rendering View: ~/Areas/Dkg/Views/Layouts/StandardLayout.cshtml: Error while rendering view: '~/Areas/Dkg/Views/Layouts/StandardLayout.cshtml' (model: 'Sitecore.Mvc.Presentation.RenderingModel, Sitecore.Mvc').
at Sitecore.Mvc.Presentation.ViewRenderer.Render(TextWriter writer)
at Sitecore.Mvc.Pipelines.Response.RenderRendering.ExecuteRenderer.Render(Renderer renderer, TextWriter writer, RenderRenderingArgs args)
Inner Exception: Could not create instance of type: Glass.Mapper.Sc.Pipelines.GetChromeData.EditFrameBuilder. No matching constructor was found.
This happens at line 165 which is:
@Html.Sitecore().Placeholder("herocontent")
Preview works and the page displays ok when published.