Load the log4net assembly into the GAC

[andrewwages]

I was having the same type of issue with a lib I wrote. I just had to add the assembly to the GAC (Global Assembly Cache). Then I was able to load my assembly.

Hope this helps!

Emil ?str? wrote:

Loading NHibernate.dll (and log4net) in PowerShell
16-Apr-09

Hi!

I'm trying to load a .Net DLL (NHibernate.dll, but that is probably not
relevant) which in turns references log4net. Log4net seems to give problems:

---------------------------------
System.Management.Automation.MethodInvocationException: Exception calling
".ctor" with "0" argument(s): "The type initializer for 'NHibernat
e.Cfg.Configuration' threw an exception." --->
System.TypeInitializationException: The type initializer for
'NHibernate.Cfg.Configuration' t
hrew an exception. ---> System.IO.FileNotFoundException: Could not load file
or assembly 'log4net, Version=1.2.10.0, Culture=neutral, Public
KeyToken=1b44e1d426115821' or one of its dependencies. The system cannot
find the file specified.
File name: 'log4net, Version=1.2.10.0, Culture=neutral,
PublicKeyToken=1b44e1d426115821'
at NHibernate.Cfg.Configuration..cctor()
--- End of inner exception stack trace ---
at
System.Runtime.CompilerServices.RuntimeHelpers._RunClassConstructor(IntPtr
type)
at
System.Runtime.CompilerServices.RuntimeHelpers.RunClassConstructor(RuntimeTypeHandle type)
at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags
invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at
System.Management.Automation.DotNetAdapter.AuxiliarConstructorInvoke(ConstructorInfo constructor, Object[] arguments, MethodInformatio
n methodInformation, Object[] originalArguments)
--- End of inner exception stack trace ---
at
System.Management.Automation.DotNetAdapter.AuxiliarConstructorInvoke(ConstructorInfo constructor, Object[] arguments, MethodInformatio
n methodInformation, Object[] originalArguments)
at
System.Management.Automation.DotNetAdapter.ConstructorInvokeDotNet(ConstructorInfo[] constructors, Object[] arguments)
at
Microsoft.PowerShell.Commands.NewObjectCommand.CallConstructor(ConstructorInfo[] constructors, Object[] args)
At line:1 char:39
+ C:\tfs\Lernia\Int??ktsverktyget\test.ps1 <<<<
---------------------------------

So it seems that log4net references something that cannot be found. The
question is what that might be...

Here's my script:

[reflection.assembly]::loadfile('C:\TFS\Lernia\Int??ktsverktyget\Libs\log4net.dll')
[reflection.assembly]::loadfile('C:\TFS\Lernia\Int??ktsverktyget\Libs\NHibernate.dll')
$config = new-object NHibernate.Cfg.Configuration

It's the last line of the script that throws the exception. It's probably
thrown the first time that a log message is created.

Any ideas on what might be problem or how I can debug this are most welcome!

Thanks in advance

Emil

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