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Question

Question

FileNotFoundException ASP.NET Core

asked on June 29, 2017

I am building an ASP.NET core application, however I am receiving the error: System.IO.FileNotFoundException: Could not load file or assembly 'Interop.LFSO102Lib, Version=10.2.0.0, Culture=neutral, PublicKeyToken=607dd73ee2bd1c00'. The system cannot find the file specified.
File name: 'Interop.LFSO102Lib, Version=10.2.0.0, Culture=neutral, PublicKeyToken=607dd73ee2bd1c00'.

 

I have tried multiple versions of the DLL, but still no success with it. Is there some kind of compatibility issue with core, and if so is there anyway around it?

 

Thanks

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Answer

SELECTED ANSWER
replied on June 29, 2017 Show version history

I don't have any hands-on experience, but I've read some things that make me wonder if you'll be able to use COM libraries (like LFSO) at all.  On the other hand, I would have expected a different error if the problem is that COM isn't supported.

Have you tried using RA?

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replied on June 30, 2017

Haven't used RA. So there is no chance at all for making the libraries working? And is it entirely due to the fact that I'm using COM libraries?

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replied on June 30, 2017

My understanding is that COM (and therefore LFSO) may be incompatible with ASP.Net core, but I'm not claiming to be an expert and I would encourage you to research the topic further.  If you run a tool like Process Monitor you might gain some insight into why it seems to not be able to find the file.

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replied on June 30, 2017

Okay, I've been looking at the application with Process Monitor and haven't really found anything useful. We do need this to run in ASP.NET Core, so is there any way that we can connect to the web service by writing out our own classes?

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replied on June 30, 2017

Not really, but using RA would be way easier anyway.

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replied on June 30, 2017

Alright, I'll take a look into using RA instead. Are there any guides to make the transition to RA from LFSO easier? Thank you for all the help.

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