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Excel in ASP.NET

Let's try both ASp and Excel groups and see if I can get some help...

My web site loads an Excel template, populates it and redirects the user to the new file. This works great on my dev box. But when I publish it, I get the following;

Could not load file or assembly 'Microsoft.Office.Interop.Excel, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

I'm a little confused by the last line of the error, The located assembly's manifest definition does not match the assembly reference. I ony have Office 12 on this box so I'm not sure how the references could get mis-matched.

My Bin folder has Interop.Excel.dll along with office.dll.

Am I missing a file? a reference? I must be missing something :-(

Dan
Jul 16 '08 #1
6 5705
Youch.

You might want to check this:

http://support.microsoft.com/kb/257757

"Dan Fergus" <da**@forestsoftwaregroup.comwrote in message news:E7**********************************@microsof t.com...
Let's try both ASp and Excel groups and see if I can get some help...

My web site loads an Excel template, populates it and redirects the user to the new file. This works great on my dev box. But when I publish it, I get the following;

Could not load file or assembly 'Microsoft.Office.Interop.Excel, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

I'm a little confused by the last line of the error, The located assembly's manifest definition does not match the assembly reference. I ony have Office 12 on this box so I'm not sure how the references could get mis-matched.

My Bin folder has Interop.Excel.dll along with office.dll.

Am I missing a file? a reference? I must be missing something :-(

Dan
Jul 16 '08 #2
"Dan Fergus" <da**@forestsoftwaregroup.comwrote in message
news:E7**********************************@microsof t.com...
Am I missing a file? a reference?
No.

The reason is very simple. Server-side Office Automation is not recommended
by Microsoft, nor is it supported, for the simple reason that it doesn't
work properly. Others will doubtless tell you different - you already know
that it doesn't...

Microsoft Office simply wasn't designed to be run in this type of
architecture. See the following KB articles:
http://support.microsoft.com/default.aspx/kb/288367
http://support.microsoft.com/default...US;q257757#kb2

Because you need to manipulate an Excel template, there is really only one
solution which is guaranteed to work:
http://www.aspose.com/categories/fil...a/default.aspx
--
Mark Rae
ASP.NET MVP
http://www.markrae.net

Jul 16 '08 #3
I'm having the very same problem...

This Interop requires Full Trust server... Which is unacceptable for shared hosting (Usually, Medium trust)...

i'm trying to work with perl, but all that i can see is a lot of work and too few success...
christiano..

"Dan Fergus" <da**@forestsoftwaregroup.comescreveu na mensagem news:E7**********************************@microsof t.com...
Let's try both ASp and Excel groups and see if I can get some help...

My web site loads an Excel template, populates it and redirects the user to the new file. This works great on my dev box. But when I publish it, I get the following;

Could not load file or assembly 'Microsoft.Office.Interop.Excel, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

I'm a little confused by the last line of the error, The located assembly's manifest definition does not match the assembly reference. I ony have Office 12 on this box so I'm not sure how the references could get mis-matched.

My Bin folder has Interop.Excel.dll along with office.dll.

Am I missing a file? a reference? I must be missing something :-(

Dan
Jul 17 '08 #4
On Jul 17, 12:00*am, "Dan Fergus" <d...@forestsoftwaregroup.com>
wrote:
Let's try both ASp and Excel groups and see if I can get some help...

My web site loads an Excel template, populates it and redirects the user to the new file. *This works great on my dev box. *But when I publish it, I get the following;

Could not load file or assembly 'Microsoft.Office.Interop.Excel, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

I'm a little confused by the last line of the error, The located assembly's manifest definition does not match the assembly reference. *I ony haveOffice 12 on this box so I'm not sure how the references could get mis-matched.

My Bin folder has Interop.Excel.dll along with office.dll.

Am I missing a file? a reference? I must be missing something :-(

Dan
I agree with Mark that there are many automation issues on the server:
http://www.gemboxsoftware.com/GBSpre...htm#Automation

Except Aspose component, you can try GemBox.Spreadsheet Free Excel
Read/Write component: http://www.gemboxsoftware.com/GBSpreadsheetFree.htm
If you have XLS/CSV/XLSX files smaller that 150 rows it is free of
charge.

--Zeljko
Jul 29 '08 #5
Wouldn't the PIA's need to be physically installed on the server? Also I
would think that you need to modify the CONFIG files on the server to give
permission for this assembly to be used within the web application. The
following link outlines this using OleDb as an example.

http://msdn.microsoft.com/en-us/library/wyts434y.aspx

If you are using shared hosting I would be suprised if you get this working.
Most shared hosting restricts you to medium trust.

Hope this helps.

--
Alan Moseley IT Consultancy
http://www.amitc.co.uk
"Dan Fergus" wrote:
Let's try both ASp and Excel groups and see if I can get some help...

My web site loads an Excel template, populates it and redirects the user
to the new file. This works great on my dev box. But when I publish it,
I get the following;

Could not load file or assembly 'Microsoft.Office.Interop.Excel,
Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one
of its dependencies. The located assembly's manifest definition does not
match the assembly reference. (Exception from HRESULT: 0x80131040)

I'm a little confused by the last line of the error, The located
assembly's manifest definition does not match the assembly reference. I
ony have Office 12 on this box so I'm not sure how the references could
get mis-matched.

My Bin folder has Interop.Excel.dll along with office.dll.

Am I missing a file? a reference? I must be missing something :-(

Dan
Sep 23 '08 #6
"Alan Moseley" <Al*********@discussions.microsoft.comwrote in message
news:9D**********************************@microsof t.com...

[top-posting corrected]
>My web site loads an Excel template, populates it and redirects the user
to the new file. This works great on my dev box. But when I publish it,
I get the following;

Could not load file or assembly 'Microsoft.Office.Interop.Excel,
Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or
one
of its dependencies. The located assembly's manifest definition does not
match the assembly reference. (Exception from HRESULT: 0x80131040)
Wouldn't the PIA's need to be physically installed on the server?
Microsoft Office simply wasn't designed to for server-side automation.
Microsoft don't recommend it, and won't support any solution which even
attempts to use it:
http://support.microsoft.com/default.aspx/kb/288367
http://support.microsoft.com/default...US;q257757#kb2
http://www.aspose.com/categories/pro...utomation.aspx

Installing the PIAs won't make any difference to that...
--
Mark Rae
ASP.NET MVP
http://www.markrae.net

Sep 23 '08 #7

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