程序报错，请高手指教（急！！）

各位高手大家好，我是搞ASP.NET的，我在本地开发了一个程序，在本机运行是正常的
但是我今天部署到服务器上运行之后就报错了！错误如下：
<html>
    <head>
        <title>A generic error occurred in GDI+.</title>
        <style>
         body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;}
         p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px}
         b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px}
         H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red }
         H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon }
         pre {font-family:"Lucida Console";font-size: .9em}
         .er {font-weight: bold; color: black;text-decoration: none;}
         .version {color: gray;}
         .error {margin-bottom: 10px;}
         .expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; }
        </style>
    </head>    <body bgcolor="white">            <span><H1>Server Error in '/' Application.<hr width=100% size=1 color=silver></H1>            <h2> <i>A generic error occurred in GDI+.</i> </h2></span>            <font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif ">            <b> Description: </b>An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.            <br><br>            <b> Exception Details: </b>System.Runtime.InteropServices.ExternalException: A generic error occurred in GDI+.<br><br>            <b>Source Error:</b> <br><br>            <table width=100% bgcolor="#ffffcc">
               <tr>
                  <td>
                      <code>An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.</code>                  </td>
               </tr>
            </table>            <br>            <b>Stack Trace:</b> <br><br>            <table width=100% bgcolor="#ffffcc">
               <tr>
                  <td>
                      <code><pre>[ExternalException (0x80004005): A generic error occurred in GDI+.]
   System.Drawing.Image.Save(String filename, ImageCodecInfo encoder, EncoderParameters encoderParams) +378938
   System.Drawing.Image.Save(String filename, ImageFormat format) +69
   FanG.Chartlet.SaveChart(String path, Bitmap chart) +186
   FanG.Chartlet.DrawBarsChart() +5386
   FanG.Chartlet.Render(HtmlTextWriter writer) +77
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +22
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +130
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +24
   System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +59
   System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +68
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121
   System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +37
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +130
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +24
   System.Web.UI.Page.Render(HtmlTextWriter writer) +26
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +22
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1896
</pre></code>                  </td>
               </tr>
            </table>            <br>            <hr width=100% size=1 color=silver>            <b>Version Information:</b> Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42            </font>    </body>
</html>

不知道怎么解决，请高手指教

解决方案 »

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GDI+ 中发生一般性错误

  B:

  关于您提到的“System.Runtime.InteropServices.ExternalException: GDI+ 中发生一般性错误，”的问题，根据我的经验，是由于代码中img.Save(FilePath,ImageFormat.Bmp);引起的。
  原因是因为Html网页及Http协议不支持BMP格式的图片文件导致的。而解决方法就是我们在调用Save方法时将格式转化为JPEG或者GIF，但由于GIF仅支持256色，会引起图片失真，所以我建议转化为JPEG格式，如下语句：
  img.Save(FilePath, ImageFormat.Jpeg);

  A:

  如果这个文件夹中有这个名字的图片就包错误
  这是怎么回事?
  可以创建图片文件了,
  我也不知道是那个问题

  B:

  请问您做过图片的转化了吗？是转化为JPEG格式后还报这个错误吗？
  A:

  我只改了改保存图片的文件名称

  B:

  我建议您将img.Save(FilePath,ImageFormat.Bmp);更改为img.Save(FilePath, ImageFormat.Jpeg);
  另外还需要将this.Image1.ImageUrl="Image\\doc.bmp";更改为转换好的Jpeg文件，因为Http协议不支持bmp，据我所知这就是引起才错误的原因。
相应的帐户没有写权限。
指定的物理路径不存在。
保存的文件已存在并因某种原因被锁定。
在代码中使用 using 语句，释放 Image 对象所使用的所有资源。