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Question

Could not load file or assembly 'Laserfiche.HttpClient.dll'

asked on November 20, 2015

I'm able to run an executable built with the SDK on my development PC however after deploying to a production server I get the following error :

Unhandled Exception: System.IO.FileNotFoundException: Could not load file or assembly 'Laserfiche.HttpClient.dll' or one of its dependencies. The specified module could not be found.
   at Laserfiche.RepositoryAccess.Server.GetRepositories()
   at MyProgram.Program.Main(String[] args)

The target machine is running Windows Server 2008 R2 Standard with Service Pack 1.  It is a 64-bit OS.  It has the following components installed:

Laserfiche SDK Runtime 9.1 x64 (version 9.1.1.118)
Microsoft Visual C++ 2012 Redistributable (x64) - 11.0.61030
Microsoft .NET Framework 4.5.2

I'm building the application using Visual Studio 2013.

Thanks in advance for any help you can offer!
- Bill
 

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Answer

SELECTED ANSWER
replied on November 20, 2015

Is your application running as x86? Laserfiche.HTTPClient has x86 and x64 versions, it's not MSIL. I wouldn't recommend GAC-ing it by itself.

Any chance your project is accidentally referencing a different version of it (9.0 instead of 9.1)?

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Replies

replied on November 20, 2015

My application was not running as x86 because I specified it to build to an x64 target platform.  I had several projects under the solution that referenced:

C:\Program Files\Laserfiche\SDK 9.1\bin\9.1\net-4.0\Laserfiche.RepositoryAccess.dll

however one of the projects referenced:

C:\Program Files\Laserfiche\SDK 9.1\bin\9.0\net-4.0\Laserfiche.RepositoryAccess.dll

After switching that project to the 9.1 path it worked!

Thanks so much for you help!

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replied on November 20, 2015 Show version history

You will need to find the dll in the GAC (%systemroot%\Microsoft.Net\assembly\GAC_MSIL), copy it to the production system and use gacutil.exe or powershell to actually "install" it to the GAC. There are a few tutorials out there that show you how to accomplish this (https://msdn.microsoft.com/en-us/library/dkkx7f79(v=vs.110).aspx).

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