title: Connect to SQL Server database using Asp.net MVC
body: <p>I'm starting with Asp.net MVC. When connect to SQL Server database then error.</p>
  
  <p>This is <code>&lt;connectionStrings&gt;</code></p>
  
  <pre><code>&lt;add name="SGTSVNDBContext" connectionString="Data Source=DESKTOP-ABKAVRM\SQLEXPRESS;Initial Catalog=SGTSVNDBAUTH_CusCloud;Persist Security Info=True;User ID=sa;Password=;MultipleActiveResultSets=True" providerName="System.Data.SqlClient" /&gt;
  </code></pre>
  
  <p>This is <code>&lt;appSettings&gt;</code></p>
  
  <pre><code>&lt;add key="webpages:Version" value="3.0.0.0" /&gt;
      &lt;add key="webpages:Enabled" value="false" /&gt;
      &lt;add key="ClientValidationEnabled" value="true" /&gt;
      &lt;add key="UnobtrusiveJavaScriptEnabled" value="true" /&gt;
      &lt;add key="DefaultPassword" value="123456" /&gt;
      &lt;add key="CustomerKey" value="YN8HgQuslP7kHfMeJk0NyHbu1R2IyHo4neUWmIHlffA=" /&gt;
      &lt;add key="GCM-SENDER-ID" value="86033830857" /&gt;
      &lt;add key="AUTH-TOKEN" value="AIzaSyB3FLcWcrRlOcu_zyCdl6tMawlvSoX4MeQ" /&gt;
      &lt;add key="FCM-SENDER-ID" value="122441061332" /&gt;
      &lt;add key="FCM-SERVER-KEY" value="AAAAHIIOU9Q:APA91bGWrJHwfJKiZsRGs8V62_xhuK9x0AWDNewrEnQiPrsrIpZ2YVYKop4Z44LSdNv_iZcSFmHpQ8YxS-WrTniZ5cZMe5T85PKJzv-CTNjTikwc7rqwoIXU--Ssk84IdmBzM8XcYuBb" /&gt;
      &lt;!--&lt;add key="BackupPath" value="\\192.168.2.10\SGVN-Server\Scan folder\Phat\" /&gt;--&gt;
      &lt;add key="BackupPath" value="D:\Mine\SystemGear\SGVN_SGF #07_2015\Project\Sites\WebAPI\Database_Backup\" /&gt;
      &lt;add key="SqlInstanceName" value="SGSOFT09-V2" /&gt;
      &lt;add key="BackupDBName" value="SGTSVNDBAUTH_CusCloud" /&gt;
      &lt;add key="SqlUserName" value="sa" /&gt;
      &lt;add key="SqlPassword" value="" /&gt;
  </code></pre>
  
  <p>When build project then error as the this</p>
  
  <p><a href="https://i.stack.imgur.com/pTEx2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/pTEx2.png" alt="enter image description here"></a></p>