FileUpload Control in Mono - asp.net

Question

I have encoutered a question when I run ASP.NET on Mono+Apache2.
I put a FileUpload Control in a Page,when click button to upload the file it will throw an Exception:
Could not find a part of the path "/var/www/www.mysite.com/upload/headImage/uid_1.jpg".
Description: HTTP 500. Error processing request.
Stack Trace:
System.IO.DirectoryNotFoundException: Could not find a part of the path "/var/www/www.mysite.com/upload/headImage/uid_1.jpg".
at System.IO.File.Delete (System.String path) [0x00000] in :0
at System.Web.HttpPostedFile.SaveAs (System.String filename) [0x00000] in :0
at System.Web.UI.WebControls.FileUpload.SaveAs (System.String filename) [0x00000] in >:0
at WebApplication.users.ImageUpload.btnUpload_Click (System.Object sender, >System.EventArgs e) [0x00000] in :0
at System.Web.UI.WebControls.Button.OnClick (System.EventArgs e) [0x00000] in :0
at System.Web.UI.WebControls.Button.RaisePostBackEvent (System.String eventArgument) >[0x00000] in :0
at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent >(System.String eventArgument) [0x00000] in :0
at System.Web.UI.Page.RaisePostBackEvent (IPostBackEventHandler sourceControl, >System.String eventArgument) [0x00000] in :0
at System.Web.UI.Page.RaisePostBackEvents () [0x00000] in :0
at System.Web.UI.Page.ProcessRaiseEvents () [0x00000] in :0
at System.Web.UI.Page.InternalProcessRequest () [0x00000] in :0
at System.Web.UI.Page.ProcessRequest (System.Web.HttpContext context) [0x00000] in :0
I'm sure the path "/var/www/www.mysite.com/upload/headImage/" exist and have been chmod 766 and there isn't exists "uid_1.jpg" in that folder.
Source code:
string fileName = "uid_1.jpg";
string imageUrl = "/upload/headImage/" + fileName;
fileName = Path.Combine(Server.MapPath("~/upload/headImage/"), fileName);
if (File.Exists(fileName))
{
File.Delete(fileName);
}
upload.SaveAs(fileName);
Could anyone can tell how to do?
Thanks.

Answer 1

I got it!
When I use chmod 777 /var/www/www.mysite.com/upload/headImage/,I found I can upload files to server now.