Do you have any other suggestions?
I just checked. Both SevenSpikes.Core and SevenSpikes.Nop.Plugins.CategoriesHeaderMenu read Installed = true
1) Version 2.3 on nopCommerce 2.3
2) The only other widgets that I have were installed automatically: "Google Analytics" & "Live person (Chat)". However, they have not been attached to any zone.
I followed the installation steps perfectly. When I tried to integrate the widget, I got this error on my site.
Value cannot be null.
Parameter name: searchedLocations
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: searchedLocations
Source Error:
Line 3: @foreach (var widget in Model)
Line 4: {
Line 5: @Html.Action(widget.ActionName, widget.ControllerName, widget.RouteValues)
Line 6: }