0 8.5 Upgrade Error 1 Don Smallman posted 5 Years Ago Hi. I got the following error when upgrading to 8.5. It was on the Restart Screen that comes up after the upgrade completes. No other errors since. Any ideas? I completed the 8.4 upgrade just prior to 8.5 and no errors with that one. Thanks! Don----------------------------------------------------------------------------------Error Loading Block: Footer Text Show Detailsc:\inetpub\wwwroot\Blocks\Cms\HtmlContentDetail.ascx.cs(690): error CS1061: 'Rock.Web.UI.RockPage' does not contain a definition for 'BrowserClient' and no extension method 'BrowserClient' accepting a first argument of type 'Rock.Web.UI.RockPage' could be found (are you missing a using directive or an assembly reference?) at System.Web.Compilation.AssemblyBuilder.Compile() at System.Web.Compilation.BuildProvidersCompiler.PerformBuild() at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath) at Rock.Web.UI.RockPage.OnInit(EventArgs e)