I get the following error at runtime after simply putting a control on a page:
"The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>)."
I've attached a screen shot. For some reason it's looking for a file in c:\Users\Stephen directory even though there has never been a Stephen to log on to my machine.
Comments: I am also experiencing this issue. It occurs when I attempt to add an HtmlEditorExtender via code-behind to an asp:PlaceHolder's Controls property. Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "AjaxControlToolkit.Properties.Resources.NET4.resources" was correctly embedded or linked into assembly "AjaxControlToolkit" at compile time, or that all the satellite assemblies required are loadable and fully signed.
"The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>)."
I've attached a screen shot. For some reason it's looking for a file in c:\Users\Stephen directory even though there has never been a Stephen to log on to my machine.
Comments: I am also experiencing this issue. It occurs when I attempt to add an HtmlEditorExtender via code-behind to an asp:PlaceHolder's Controls property. Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "AjaxControlToolkit.Properties.Resources.NET4.resources" was correctly embedded or linked into assembly "AjaxControlToolkit" at compile time, or that all the satellite assemblies required are loadable and fully signed.