some system classes do not work AOS

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Posted on by dark_knight

793

Hello,

I have two classes. IN one of them I have a code:

new InteropPermission(InteropKind::ClrInterop).assert();
    workbook.Close(true,  fullFileName, missing);
    application.Quit();
    CodeAccessPermission::revertAssert();

where workbook is Microsoft.Office.Interop.Excel._Workbook

on the string

workbook.Close(true,  fullFileName, missing);

It stops the logic processing without giving any errors.

Also I have another class with the code inside:

System.Net.Mail.Attachment

Which gives me an error

CLRObject can't be created.

Both classes work fin on one AOS and do not work on the other so I suppose it's something to do with the either settings of the problematic AOS or some external libraries.

How to troubleshoot this?

Thanks.

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ergun sahin 8,816 Moderator on at

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RE: some system classes do not work AOS

See task manager for any open excels
dark_knight 793 on at

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RE: some system classes do not work AOS

I've checked it and I can open the file on the problematic AOS server under this account. Also there is an account connected to business connector and it also has full access to the file.
Martin Dráb 231,403 Most Valuable Professional on at

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RE: some system classes do not work AOS

Yes, that's correct. That the process, and the user, which actually executes the code.
dark_knight 793 on at

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RE: some system classes do not work AOS

Thanks. What AOS service account do you mean? Is it domain service account under which AOS service is launched?
Martin Dráb 231,403 Most Valuable Professional on at

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RE: some system classes do not work AOS

That you can open it doesn't necessarily mean that the AOS service account can open it too. That's the first thing that I would check.
dark_knight 793 on at

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RE: some system classes do not work AOS

Hello Martin,

Thanks a lot for your help.

The strange thing when I launch this class on the client it works. When I launch it on the AOS server it throws an error

Microsoft Excel can't access the file "\\path to the file\". It can happen due to one of the reasons below:

- file doesn't exist

- file is used by other app

- workbook name is the same as other workbook name currently opened

I have translated error from Russian.

I'm sure the file exists and I can open it from the AOS where class doesn't works. It's located on the shared folder on the file server.

So what is the difference when the class works on the client and on the server? ON the client it works fine, on the server it doesn't
Martin Dráb 231,403 Most Valuable Professional on at

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RE: some system classes do not work AOS

The fact that "It stops the logic processing without giving any errors" suggests that you don't catch CLR exceptions. Add something like this:

try { ... your code using CLR Interop ... } catch (Exception::CLRError) { throw error(AifUtil::getClrErrorMessage()); }

It should give you a better idea about what's going on.
Gunjan Bhattachayya 35,421 on at

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RE: some system classes do not work AOS

Hi Azat Mukhametzyanov,

Are you logging in directly into the AOS servers and running these classes? Is Office installed on one the AOS servers and not installed on the other?

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