title: Method not found: 'Serilog.LoggerConfiguration
body: <p>I have a main logger for my solution which is defined as</p>
  
  <pre><code>    Log.Logger = new LoggerConfiguration()
          .MinimumLevel.Verbose()
          .WriteTo.LiterateConsole(LogEventLevel.Verbose)
          .WriteTo.RollingFile($"{appLogDir}{Path.DirectorySeparatorChar}logs{Path.DirectorySeparatorChar}V-RPi-{{Date}}.log")
          .WriteTo.RollingFile($"{appLogDir}{Path.DirectorySeparatorChar}logs-warnings{Path.DirectorySeparatorChar}V-RPi-{{Date}}.log", LogEventLevel.Warning)
          .WriteTo.File($"{appLogDir}{Path.DirectorySeparatorChar}recent-log.log", fileSizeLimitBytes: 134217728, restrictedToMinimumLevel: LogEventLevel.Verbose)
          .CreateLogger();
  </code></pre>
  
  <p>I want to create two separate loggers to log things in two class instances. I have defined them as below. This is located in a separate assembly from the main project.</p>
  
  <pre><code>private ILogger comRespLog;
  public **constructor**(string name)
  {
  comRespLog = new LoggerConfiguration()
                  .MinimumLevel.Verbose()            
                  .WriteTo.RollingFile($"{appLogDir}{Path.DirectorySeparatorChar}logs-CommandResponse-{Name}{Path.DirectorySeparatorChar}V-RPi-{{Date}}.log")
                  .CreateLogger();
  }
  </code></pre>
  
  <p>I receive no build errors but I receive this at run time.</p>
  
  <blockquote>
    <p>Method not found: 'Serilog.LoggerConfiguration
    Serilog.RollingFileLoggerConfigurationExtensions.RollingFile(Serilog.Configuration.LoggerSinkConfiguration,
    System.String, Serilog.Events.LogEventLevel, System.String,
    System.IFormatProvider, System.Nullable<code>1&lt;Int64&gt;,
    System.Nullable</code>1, Serilog.Core.LoggingLevelSwitch, Boolean,
    Boolean, System.Nullable`1)'."}</p>
  </blockquote>