Database 如何配置 NLog 以写入数据库

我试图让NLog写入数据库，但在我当前的代码中，当我try 调试时，它会引发一个异常，异常是:"NotifyIcon"的类型初始值设定项."程序"引发了一个异常.

我的NLog配置文件代码如下，因为这似乎是导致问题的原因，因为这是我更改的唯一代码.

<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" autoReload="true">

  <!-- 
  See http://nlog-project.org/wiki/Configuration_file 
  for information on customizing logging rules and outputs.
   -->
  <targets>
    <!-- add your targets here -->

    <target name="database" xsi:type="Database" />
    <target xsi:type="Database"
          name="String"
          dbUserName="Layout"
          dbProvider="sqlserver"
          useTransactions="false"
          connectionStringName="String"
          connectionString="Data Source=AC-02\SQLEXPRESS;Initial Catalog=master;Integrated Security=True"
          keepConnection="true"
          dbDatabase="Layout"
          dbPassword="Layout"
          dbHost="Layout"
          installConnectionString="Layout"
          commandText="INSERT INTO Logs (Machine_Name, Username, Logon_Time, Screensaver_On, Screensaver_Off, Logoff_Time, Program_Start) Values @MachineName, @Username, @LogonTime, @Screensaver_On, @Screensaver_Off, @LogoffTime, @ProgramStart "/>

  </targets>

  <rules>

    <logger name="*" minlevel="Trace" writeTo="database" />

  </rules>
</nlog>

我们将非常感谢您的任何帮助=]