Failed to map the path

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using CompassLearningInternal.DAL;
using CompassLearningInternal.Model;
 
public partial class Controls_InformationCenter : System.Web.UI.UserControl
{
    string FileSavePath = ConfigurationManager.AppSettings["FileUploadPath"].ToString();
 
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            this.ddlCategories.DataSource = InformationCenterDAO.GetAllInformationCenterCategories();
            this.ddlCategories.DataBind();
            this.ddlCategories.Items.Insert(0, new ListItem("----- Please Select -----", ""));
 
 
        }
 
        if (Page.IsPostBack)
        {
            if (ddlCategories.SelectedValue != "")
            {
                this.grvFiles.DataSource = InformationCenterDAO.GetInformationCenterFilesByCategoryId(Int32.Parse(ddlCategories.SelectedValue));
                this.grvFiles.DataBind();
                pnlContent.Visible = true;
            }
            else
            {
                this.grvFiles.Controls.Clear();
                pnlContent.Visible = false;
            }
        }
    }
 
    protected void grvFiles_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            //Enable/disable active column
            DataRowView rowView = (DataRowView)e.Row.DataItem;
            Literal litPath = (Literal)e.Row.FindControl("litPath");
 
            if (rowView["path"].ToString() != "")
            {
                litPath.Text = "<a href='" + Page.ResolveUrl(@rowView["path"].ToString() + rowView["system_file_name"].ToString()) + "' target='_new' />" + rowView["name"].ToString() + "</a>";
            }
        }
    }
 
    protected void grvFiles_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        if (e.CommandName == "RowDeleting")
        {
            int delete = InformationCenterDAO.DeleteFile(Int32.Parse(e.CommandArgument.ToString()));
 
            if (delete != -1)
            {
                lblConfirmation.Text = "File successfully deleted from Information Center.";
            }
            else
            {
                lblConfirmation.Text = "There was a problem removing the file from the Information Center.";
            }
        }
    }
 
    protected void btnUpload_Click(object sender, EventArgs e)
    {
        //get path on client
        string strFileName = System.IO.Path.GetFileName(fileUp.PostedFile.FileName);
 
        string[] exts = { "pdf", "doc", "xls", "ppt", "gif", "jpg", "tif", "bmp", "txt" };
        bool acceptFile = false;
 
        //filter out non-allowed extensions
        foreach (string ext in exts)
        {
            if (strFileName.IndexOf(ext) != -1) acceptFile = true;
        }
 
        if (!acceptFile)
        {
            //Alert - wrong file type
            lblConfirmation.Text = "File is not an acceptable format. Upload failed";
            return;
        }
        else
        {
            try
            {
                int category_id = -1;
                category_id = Int32.Parse(ddlCategories.SelectedValue);
 
                //Save file to DB, then add to disk
                CompassFile NewFile = InformationCenterDAO.InsertFile(category_id, strFileName.Trim(), FileSavePath.Trim(), txtDescription.Text, "");
 
                if (NewFile.ID != 0)
                {
                    //Save to disk
                    fileUp.PostedFile.SaveAs(Server.MapPath(NewFile.Path + NewFile.SysFileName));
 
                    //Alert success
                    lblConfirmation.Text = "File successfully added to Information Center.";
 
                    //reset all fields
                    //ResetMicroSiteFields();
                    //BindItems(Int32.Parse(ddlStates.SelectedValue));
                }
                else
                {
                    //Alert - wrong file type
                    lblConfirmation.Text = "File could not be added to Information Center.";
 
                    return;
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
    }
}

                                  

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