在MVC 4部署项目中出现404错误

页面正在通过JavaScript向控制器动作发送带有过滤器值的请求:

 function ItemListModel(row) {
    var self = this;
    self.Date = row[0];
    self.Rank = row[1];
    self.UserID = row[2];
    self.Last = row[3];
    self.First = row[4];
    self.Middle = row[5];
    self.Serial = row[6];
    self.ECN = row[7];
    self.MAC = row[8];
    self.Clinical = row[9];
    self.Make = row[10];
    self.Model = row[11];
    self.Dept = row[12];
}
function Export() {
    var oSettings = oTable.fnSettings();
    var arr = new Array();
    $("tfoot input").each(function (i) {
        var test = $(this).val();
        arr.push(test);
    });
    var model = [];
    model = new ItemListModel(arr);
    window.location.href = "/Inventory/ExportSheet?model=" + JSON.stringify(model);
}

动作是:

 public void ExportSheet(string model)
    {
        ItemsListModel reportmodel = new ItemsListModel();
        if (model != null)
        {
            JavaScriptSerializer serl = new JavaScriptSerializer();
            reportmodel = (ItemsListModel)serl.Deserialize(model, typeof(ItemsListModel));
        }
        DataTable dt = ReportsRepository.GetItemsListParms(CleanReportParms(reportmodel));
        dt.Columns.Add("DateIssued");
        foreach (DataRow row in dt.Rows)
        {
            DateTime date = row.Field<DateTime>("Date Issued");
            string newdate = date.ToShortDateString();
            row.SetField("DateIssued", newdate);
        }
        dt.Columns.Remove("Date Issued");
        DumpExcel(dt, "itemlist");
    }

我正在使用EPPlus创建一个电子表格下载到浏览器。这在我的开发盒上工作得很好，但是一旦部署，我就会得到这个错误:

 The resource cannot be found. 
  Description: HTTP 404. The resource you are looking for (or one of its
 dependencies) could have been removed, had its name changed, or is    
 temporarily unavailable.  Please review the following URL and make sure 
 that it is spelled correctly. 
  Requested URL: /Inventory/ExportSheet