Problem with Integration

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:  }

How can I fix this?

Hi smathias,

Which version of the plugin do you use?
Can you check the followings:

1. Make sure the Nop Categories Header Menu plugin is installed.
2. Do you have any other widgets added?

Please let us know how it goes.

Best Regards,
Nop-Templates Support Team

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.

Can you please check if the SevenSpikes.Core and SevenSpikes.Nop.Plugins.CategoriesHeaderMenu plugins are installed?

Go to Configuration -> Plugins and in the list of plugins please find SevenSpikes.Core and SevenSpikes.Nop.Plugins.CategoriesHeaderMenu plugins and check that Installed is set to True

Thanks

I just checked. Both SevenSpikes.Core and SevenSpikes.Nop.Plugins.CategoriesHeaderMenu read Installed = true

Do you have any other suggestions?

Really we don't have any other ideas what the problem might be.
We tried to reproduce your problem but with no much success.
Probably you have already done that but can you Restart your application and change the Global.asax file just adding a blank space in it and save it.
Have you done any modification to nopCommerce?
Please give us any information that you think might help us reproduce and investigate this issue.
If you are not working on a Dev machine could you give us a link to your web site?

Thanks

~Support

I have clicked the "Restart application" and changed the Global.asax file.
I have done nothing to the modification of the core of nopCommerce; just the settings for customization to my needs.
The link is <http://hdaltd.host.comstar.biz/>

I believe that I have given you as much information as I can think of.
If there are any other questions that you have for me, please ask.