Bitmap.Save 上的 ASP.NET 错误“异常 (0x80004005):GDI+ 发生一般错误".

我有一个函数，它首先从磁盘读取图像，调整其大小，然后保存到另一个目录.

I have a function which first reads an image from disk, resizes it and then saves to another directory.

当我使用 Bitmap.Save(directory theimagename) 时，它会返回我在问题标题中所述的错误.

when i use the Bitmap.Save(directory theimagename) it returns the error as i stated in the question title.

我检查了目录是否正确，该目录中不存在给定的图像名称.

i checked the directory is right, and the given image name doesn't exist in that dir.

奇怪的是，相同的代码在本地机器上运行良好.但是当我将它上传到我的共享托管空间时，它就不起作用了.

what is weird, is that the same code works great on the local machine. but when i upload it to my shared hosting space, it just doesn't work.

代码如下.

bmpOut = new Bitmap(Size, Size);
Graphics g = Graphics.FromImage(bmpOut);
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
g.FillRectangle(Brushes.White, 0, 0, Size, Size);
int topBottomPadding = 0; int leftRightPadding = 0;
if (Size > lnNewWidth   1)
    leftRightPadding = Convert.ToInt32((Size - lnNewWidth) / 2);
else if (Size > lnNewHeight   1)
    topBottomPadding = Convert.ToInt32((Size - lnNewHeight) / 2);
g.DrawImage(loBMP, leftRightPadding, topBottomPadding, lnNewWidth, lnNewHeight);
Bitmap bmp = new Bitmap(bmpOut);
if (bmp != null)
    bmp.Save(ResizedOutput); // C:InetpubvhostsDomainNamehttpdocsProductImages500pxgigabyte_ga_ep45_ds4_profilelarge[1].jpg
bmp.Dispose();
bmpOut.Dispose();
g.Dispose();
loBMP.Dispose();

堆栈跟踪:

[ExternalException (0x80004005): A generic error occurred in GDI .]
   System.Drawing.Image.Save(String filename, ImageCodecInfo encoder, EncoderParameters encoderParams)  377630
   System.Drawing.Image.Save(String filename, ImageFormat format)  69
   System.Drawing.Image.Save(String filename)  25
   Utilities.ResizeImage(String fileName, String mode) in c:inetpubvhostsatuhanakcay.comhttpdocsApp_CodeUtilities.cs:181
   Link.ToProductImage(String fileName) in c:inetpubvhostsatuhanakcay.comhttpdocsApp_CodeLink.cs:79
   Product.PopulateControls(ProductDetails pd) in c:inetpubvhostsatuhanakcay.comhttpdocsProduct.aspx.cs:37
   Product.Page_Load(Object sender, EventArgs e) in c:inetpubvhostsatuhanakcay.comhttpdocsProduct.aspx.cs:20