Open PowerPoint Application using c#

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hi,
i am working on Office PowerPoint 2007 using c#. i want to open the powerpoint document, so i have done some code for the same. but am facing one problem. i have attached code spinet as follow.

Microsoft.Office.Interop.PowerPoint.Application ppApp = new Microsoft.Office.Interop.PowerPoint.Application();
           ppApp.Visible = Microsoft.Office.Core.MsoTriState.msoTrue;
           Microsoft.Office.Interop.PowerPoint.Presentations oPresSet = ppApp.Presentations;
           Microsoft.Office.Interop.PowerPoint._Presentation oPres = oPresSet.Open(@"D:\Office Guru Support Files\temp.pptx",
           Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoFalse,
           Microsoft.Office.Core.MsoTriState.msoTrue);

i am getting exception as follow...

<big></big>The type 'Microsoft.Office.Interop.PowerPoint.Application' exists in both 'f:\Office Guru\PreworkArea\OfficeWork\OfficeWork\obj\Debug\Interop.Microsoft.Office.Interop.PowerPoint.dll' and 'c:\Program Files\Microsoft Visual Studio 9.0\Visual Studio Tools for Office\PIA\Office11\Microsoft.Office.Interop.PowerPoint.dll'	F:\Office Guru\PreworkArea\OfficeWork\OfficeWork\Form1.cs

can anyone know the solution to this problem?...its on urgent basis.

Posted 28-Nov-10 19:47pm

meBalkrishna

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Abhinav S · Accepted Answer · 2010-11-28T20:13:00

Solution 1

Looks like an issue of conflicting dlls - you have probably referenced two dlls

1) Interop.Microsoft.Office.Interop.PowerPoint.dll'
2) Microsoft.Office.Interop.PowerPoint.dll'

both of which contain references to Microsoft.Office.Interop.PowerPoint.Application().

You might want to remove one reference and try again.

Posted 28-Nov-10 20:13pm

Abhinav S

Comments

meBalkrishna 29-Nov-10 2:37am

Thanks You sir. It was because wrong reference that was provided.

Abhinav S 29-Nov-10 11:12am

You are welcome. If this helped, you can always mark the question as answered. Thanks. :)