Why am I receiving an exception on my server when creating a TIFF?

Question

I only receive an exception on my Windows Server Datacenter 2007 SP 2 server, not on my local Windows 7 PC.

I have wrapped the problematic call in a try-catch-finally, so that the rest of the program may execute normally.

How do I resolve the exception and generate the TIFF correctly on the server?

Exception:

System.Runtime.InteropServices.ExternalException:
A generic error occurred in GDI+. at System.Drawing.Image.Save(String
filename, ImageCodecInfo encoder, EncoderParameters encoderParams) at
TSEmails.TaskScheduleSlippage.CreateTIFFImageReport(DataTable
dataOfManyProjects, String fileName) in
D:\TSEmail\TSEmails\TaskScheduleSlippage.cs:line 236 at
TSEmails.TaskScheduleSlippage.GenerateOrganizationalEmail(DataTable
dataOfManyProjects, DataTable emailSettings) in
D:\TSEmail\TSEmails\TaskScheduleSlippage.cs:line 92

Line of code throwing the exception:

tiffImage.Save(fileName, info, encoderparams);

Relevant code:

private static void CreateTIFFImageReport(DataTable dataOfManyProjects, string fileName)
{//Line:210
    ///The following code was originally taken from http://www.yoursearchbuddy.com/create-tiff-image-multiple-images
    ///on Thursday May 9, 2013

    //Selecting the image encoder
    System.Drawing.Imaging.Encoder enc = System.Drawing.Imaging.Encoder.SaveFlag;
    ImageCodecInfo info = null;
    info = (from ie in ImageCodecInfo.GetImageEncoders()
            where ie.MimeType == "image/tiff"
            select ie).FirstOrDefault();
    EncoderParameters encoderparams = new EncoderParameters(2);
    encoderparams.Param[0] = new EncoderParameter(enc, (long)EncoderValue.MultiFrame);
    encoderparams.Param[1] = new EncoderParameter(System.Drawing.Imaging.Encoder.ColorDepth, 4L);

    //Adding graphs of each project to TIFF image
    Bitmap tiffImage = null;
    Image img = null;
    foreach (DataRow row in dataOfManyProjects.DefaultView.ToTable(true, "Project Code").Rows)
    {
        string projectCode = row["Project Code"].ToString();
        img = Image.FromFile("C:\\LMS\\Logs\\" + masterTitleWS + "ReportOf" + projectCode.Replace(" ", string.Empty) + ".jpg", false);
        if (row.Table.Rows.IndexOf(row) == 0)
        {
            //Saving the bitmap
            tiffImage = new Bitmap(250, 250, PixelFormat.Format8bppIndexed);//This line was put which SEEMED to have solved the problem, according to a developer,but there is no prove that it ran correctly, and is still giving an exception
            tiffImage = (Bitmap)img;
            tiffImage.Save(fileName, info, encoderparams);
            encoderparams.Param[0] = new EncoderParameter(enc, (long)EncoderValue.FrameDimensionPage);
        }
        else
        {
            //Adding another image
            tiffImage.SaveAdd(img, encoderparams);
        }
        //img.Dispose();
    }
    //close file
    encoderparams.Param[0] = new EncoderParameter(enc, (long)EncoderValue.Flush);
    tiffImage.SaveAdd(encoderparams);
    tiffImage.Dispose();
}//Line:250

Answer 1

After a lot of struggle, the last parameter of line 222 was changed from 4L to 24L, and it worked! Thanks to my PM!

encoderparams.Param[1] = new EncoderParameter(System.Drawing.Imaging.Encoder.ColorDepth, 24L);

It seems that older versions of windows do not support some TIFF codecs. The older code was tested on Windows Server 2012 too, and it works.