/// <summary>
/// Log Error level message.
/// </summary>
/// <param name="skipFrames">skip frames count</param>
/// <param name="fmt">log message format</param>
/// <param name="args">log message arguments</param>
public static void Err(int skipFrames, string fmt, params object[] args)
{
LoggerMgr.GetRoot().Err(1 + skipFrames, fmt, args);
}