log4net doesn't produce a log file when my project is deployed with windows installer

Question

When I log in my dev environment there is no problem but when I deploy with a windows installer no log files are produced:

<log4net>
    <root>
      <level value="ALL"/>
      <appender-ref ref="LogFileAppender"/>
    </root>
    <appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender">
      <lockingModel type="log4net.Appender.FileAppender+MinimalLock"/>
      <param name="File" value="C:\Logs\log-file.txt"/>
      <param name="AppendToFile" value="true"/>
      <rollingStyle value="Size"/>
      <maxSizeRollBackups value="10"/>
      <maximumFileSize value="10MB"/>
      <staticLogFileName value="true"/>
      <layout type="log4net.Layout.PatternLayout">
        <param name="ConversionPattern" value="%date [%thread] %-5level %logger [%C{1}.%M] - %message%newline"/>
      </layout>
    </appender>
  </log4net>

I read that it may be that it cannot find the app.config but how do I tell it where to find it?

Normally, when building, the app.config file is "renamed" to a file matching your executable and placed alongside. So, if you executable is named "Foo.exe", the app.config file will be named "Foo.exe.config". You don't need to do anything about that, it just happens. Check if that file is present in your install folder. — Jensen, Nov 14 '13 at 09:17

score 3 · Accepted Answer · edited May 23 '17 at 11:53

3

The issue was that log4net couldn't find the config file at run time after the dll was installed. Fixed by a suggestion here. In the end, my solution looked like this:

FileInfo fi = new FileInfo(AppDomain.CurrentDomain.BaseDirectory + "Assembly.dll.config");
log4net.Config.XmlConfigurator.Configure(fi);
_log.Info("Hello logging...");

Thank you for all of your input!

edited May 23 '17 at 11:53

Community

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answered Nov 14 '13 at 10:36

Pat Mustard

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score 0 · Answer 2 · answered Nov 14 '13 at 09:17

0

The app.config project file is turned to the the application.exe.config file after compilation. Maybe you are not deploying it with the installer?

answered Nov 14 '13 at 09:17

Ignacio Soler Garcia

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I can see the app.dll.config file in the installation folder alright. Is there some way to point log4net to it via the configs above? – Pat Mustard Nov 14 '13 at 09:19
@PatMustard: do you mean executableName.exe.config? – Ignacio Soler Garcia Nov 14 '13 at 09:19
Yes, but it's a dll so it looks like this: `assemblyName.dll.config` – Pat Mustard Nov 14 '13 at 09:25
Why is the log4net configuration in the dll. Can it be moved to the exe config file? – Ignacio Soler Garcia Nov 14 '13 at 09:32
The project is a dll. There is no exe. – Pat Mustard Nov 14 '13 at 09:35
Check this post to see if it helps: http://www.l4ndash.com/Log4NetMailArchive/tabid/70/view/topic/postid/17276/Default.aspx – Ignacio Soler Garcia Nov 14 '13 at 09:48

log4net doesn't produce a log file when my project is deployed with windows installer

2 Answers2