在文件目标[文件]上设置属性“布局”时出现Nlog错误

Question

当我使用nlog进行错误和记录时，我遇到了问题。这是我的代码：

错误：设置属性＆＃39;布局＆＃39;时出错在文件目标[文件]

Nlog.config

<target name="file" xsi:type="File"   layout="${date}|${level}|${logger}|${steps_guid}|${machinename}|${windows-identity:domain=false}--${message} ${exception:format=message,stacktrace:separator=*"  fileName="E:\myapplication.log" />
<target xsi:type="Database" name="database" connectionString="Data Source=xxx;Initial Catalog=xxx;Integrated Security=True" commandText="exec [dbo].[LOGINNG_CREATE]    @steps_guid,@log_application ,@log_date,@log_level ,@log_logger ,   @log_message ,@log_machine_name ,   @log_user_name ,@log_call_site ,@log_thread ,@log_exception ,   @log_stacktrace ">
  <parameter name="@steps_guid" layout="${steps_guid}"/>
  <parameter name="@log_application" layout="${application}"/>
  <parameter name="@log_date" layout="${date}"/>
  <parameter name="@log_level" layout="${level}"/>
  <parameter name="@log_logger" layout="${logger}"/>
  <parameter name="@log_message" layout="${message}"/>
  <parameter name="@log_machine_name" layout="${machinename}"/>
  <parameter name="@log_user_name" layout="${windows-identity:domain=true}"/>
  <parameter name="@log_call_site" layout="${callsite:filename=true}"/>
  <parameter name="@log_thread" layout="${threadid}"/>
  <parameter name="@log_exception" layout="${exception}"/>
  <parameter name="@log_stacktrace" layout="${stacktrace}"/>

</target>

和c＃代码，我不知道是否有必要：

Logger loggerClass = LogManager.GetCurrentClassLogger();

GlobalDiagnosticsContext.Set("steps_guid", steps_guid);
return loggerClass;

我这样使用它：

  public bool Login(Entity.USERS user)
    {
        try
        {
           this.PageRepository = new xxx.Business.UserBusiness();
            logger.Info("User service's instance created");
            return this.PageRepository.Login(user);
        }
        catch (Exception ex)
        {
            logger.ErrorException("User services login Error", ex);
            return false;
        }

    }