log4net errors not logging in umbraco log file

Question

I am using Umbraco 7.5.12.

I have a class which is supposed to log errors but the entries do not appear in umbraco log file.

Though message to admin sends well:

public class ErrorReporting
{
    private static readonly ILog Logger = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

    public static void LogError(Exception ex, string messageIntro, string id = null)
    {
        Logger.Error(messageIntro, ex);

        Error adminErrorMessage = new Error();
        adminErrorMessage.Send(ex, id);
    }
}

The url of the log file seems to be set correctly:

<file type="log4net.Util.PatternString" value="App_Data\Logs\UmbracoTraceLog.%property{log4net:HostName}.txt" />

and umbraco logs its errors correctly.

ErrorReporting class is in a separate project which is referenced in the starting project anyway and above log file setting is obviously in the starting project but it shouldn't be the issue?

I checked log4net enabled settings:

        bool IsErrorEnabled = Logger.IsErrorEnabled;
        bool IsFatalEnabled = Logger.IsFatalEnabled;
        bool IsDebugEnabled = Logger.IsDebugEnabled;
        bool IsInfoEnabled = Logger.IsInfoEnabled;
        bool IsWarnEnabled = Logger.IsWarnEnabled;

and IsDebugEnabled is false. Can this be an issue?

Answer 1

I usally use the Loghelper located in Umbraco.Core.Logging

using Umbraco.Core.Logging;

public class ErrorReporting
{
    public static void LogError(Exception ex, string messageIntro, string id = null)
    {
        LogHelper.Error(typeof(ErrorReporting), messageIntro, ex);
        Error adminErrorMessage = new Error();
        adminErrorMessage.Send(ex, id);
    }
}

Some additional information can be found here