Error Saving config for Nop Attachments

I get the following error when trying to save the settings:

Any help would be appreciated



System.Web.HttpException (0x80004005): Error executing child request for handler 'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper'. ---> System.InvalidOperationException: The ViewData item that has the key 'WidgetZone' is of type 'System.String' but must be of type 'IEnumerable<SelectListItem>'.     at System.Web.Mvc.Html.SelectExtensions.GetSelectData(HtmlHelper htmlHelper, String name)     at System.Web.Mvc.Html.SelectExtensions.SelectInternal(HtmlHelper htmlHelper, ModelMetadata metadata, String optionLabel, String name, IEnumerable`1 selectList, Boolean allowMultiple, IDictionary`2 htmlAttributes)     at System.Web.Mvc.Html.SelectExtensions.DropDownListHelper(HtmlHelper htmlHelper, ModelMetadata metadata, String expression, IEnumerable`1 selectList, String optionLabel, IDictionary`2 htmlAttributes)     at System.Web.Mvc.Html.SelectExtensions.DropDownListFor[TModel,TProperty](HtmlHelper`1 htmlHelper, Expression`1 expression, IEnumerable`1 selectList)     at ASP._Page_Views_AttachmentsPluginAdmin_SevenSpikes_Nop_Plugins_Attachments_Views_AttachmentsPluginAdmin_Settings_cshtml.Execute() in c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\190c0a8f\ad341f6\App_Web_sevenspikes.nop.plugins.attachments.views.attachmentspluginadmin.settings.cshtml.a1a762cd.6kmwzx0k.0.cs:line 0     at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()     at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()     at System.Web.WebPages.StartPage.ExecutePageHierarchy()     at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)     at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)     at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)     at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)     at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)     at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)     at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)     at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult)     at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass1e.<BeginInvokeAction>b__1b(IAsyncResult asyncResult)     at System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState)     at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)     at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)     at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)     at System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__4(IAsyncResult asyncResult, ProcessRequestState innerState)     at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)     at System.Web.Mvc.HttpHandlerUtil.ServerExecuteHttpHandlerWrapper.<>c__DisplayClass4.<Wrap>b__3()     at System.Web.Mvc.HttpHandlerUtil.ServerExecuteHttpHandlerWrapper.Wrap

Hi sgovind,

I guess that you have not updated the Core plugin when you have added the Attachments plugin.
Please make sure you are using the same version of the SevenSpikes.Core plugin and the Attachments plugin and then restart the application. Basically you need to do what is described here.

Thanks