tmoonlight opened a new issue, #165:
URL: https://github.com/apache/logging-log4net/issues/165
Hi,
I am using log4net in my project running on .NET 8. When I enable the
“PublishTrimmed” setting in my project file
(<PublishTrimmed>true</PublishTrimmed>), I consistently receive the following
errors during the configuration of log4net:
```
Starting up as a console service host
Service NSPServer started
The NSPServer service is now running, press Control+C to exit.
Another instance of the program is running. It may cause fatal error.
Initializing..
log4net:ERROR Exception while reading ConfigurationSettings. Check your
.config file is well formed XML.
System.Configuration.ConfigurationErrorsException: Configuration system
failed to initialize
---> System.MissingMethodException: Cannot dynamically create an instance
of type 'System.Configuration.ClientConfigurationHost'. Reason: No
parameterless constructor defined.
at System.RuntimeType.ActivatorCache..ctor(RuntimeType)
at System.RuntimeType.CreateInstanceDefaultCtor(Boolean, Boolean)
at System.Activator.CreateInstance(Type type, Boolean nonPublic, Boolean
wrapExceptions)
at System.Activator.CreateInstance(Type type, Boolean nonPublic)
at System.Configuration.TypeUtil.CreateInstance(Type)
at
System.Configuration.Internal.ConfigSystem.System.Configuration.Internal.IConfigSystem.Init(Type,
Object[] )
at System.Configuration.ClientConfigurationSystem..ctor()
at System.Configuration.ConfigurationManager.EnsureConfigurationSystem()
--- End of inner exception stack trace ---
at System.Configuration.ConfigurationManager.PrepareConfigSystem()
at System.Configuration.ConfigurationManager.GetSection(String)
at System.Configuration.ConfigurationManager.get_AppSettings()
at log4net.Util.SystemInfo.GetAppSetting(String)
```
This issue persists even when I configure log4net purely through code,
without using a log4net.config file. The problem does not occur in non-trimmed
mode or older versions of the trimming mode (such as .NET Core 3.0).
To assist in diagnosing this issue, I have attached a file containing my
program that can reliably reproduce the problem:
https://github.com/tmoonlight/NSmartProxy/releases/download/v1.4.0/nspclient_scd_win_x86_v1.4.0.zip
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