We're sorry Aspose doesn't work properply without JavaScript enabled.

Free Support Forum - aspose.com

Method not found: 'Void System.IO.MemoryStream.Close()'


We are evaluating the latest version Aspose.Slides for .NET.

Environment: WinXP SP2, VSTS 2005, .Net Framework 3.5 SP1, Aspose.Slides

The test is very simple:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.IO;

using Aspose.Slides;

namespace AsposeTest1


public partial class Form1 : Form


public Form1()




private void btnStart_Click(object sender, EventArgs e)


String slidePath="D:\\temp\\demo.ppt";

Presentation pres = new Presentation(slidePath);





We are using demo.ppt from Aspose distribution.

The error we get as soon as we hit "Presentation pres = new Presentation(slidePath);" is:

Method not found: 'Void System.IO.MemoryStream.Close()'.

Please help.

The project is fairly urgent and we need to make decison on the technology and licences very quickly.



hi, i have the same issue regarding aspose slide can anybody figure it out:

Method not found: 'Void System.IO.MemoryStream.Close()

Apparently this is bug. We just downloaded hot fix, replaced dll with Net 2 version and the test program shown in original post works.