log4net:ERROR Appender named [loki] not found

Question

I'm currently working on an ASP.NET MVC (4.7.2) application and have integrated log4net for logging purposes. I am trying to configure a custom appender called "loki" using the log4net.Appender.Loki nuget package, but I'm facing an issue with it. The issue is that the "console" and "file" logging is working perfectly as expected, but the "loki" appender is giving me the following error:

log4net: ERROR Appender named [loki] not found

I have added the log4net.Appender.Loki package, and I have defined the "loki" appender in my configuration. It's perplexing because the other appenders are working as intended.

Here's my log4net configuration:

<log4net>
  <root>
    <level value="ALL" />
    <appender-ref ref="console" />
    <appender-ref ref="file" />
    <appender-ref ref="loki" />
  </root>

  <appender name="console" type="log4net.Appender.ConsoleAppender">
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date %level %logger - %message%newline" />
    </layout>
  </appender>

  <appender name="loki" type="log4net.Appender.LokiAppender, log4net.Appender.Loki">
    <BufferSize  value="3" />
    <ServiceUrl value="http://localhost:3100/loki/api/v1/push" />
    <BasicAuthUserName value="" />
    <BasicAuthPassword value="" />
    <TrustSelfCignedCerts value="false" />
  </appender>

  <appender name="file" type="log4net.Appender.RollingFileAppender">
    <file value="myapp.log" />
    <appendToFile value="true" />
    <rollingStyle value="Size" />
    <maxSizeRollBackups value="5" />
    <maximumFileSize value="10MB" />
    <staticLogFileName value="true" />
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date [%thread] %level %logger - %message%newline" />
    </layout>
  </appender>
</log4net>