SQL Server連接錯誤：配置系統初始化失敗

我在嘗試連接到sql server時出現了我的winform中的錯誤，不明白爲什麼。這是錯誤：配置系統初始化失敗。SQL Server連接錯誤：配置系統初始化失敗

這裏是我的代碼：

 connectionString = ConfigurationManager.ConnectionStrings("Connect5").ConnectionString 

     Dim myConnection As New SqlConnection(connectionString) 
     myConnection.Open()

這裏是我的app.config：

<?xml version="1.0" encoding="utf-8" ?> 
<configuration> 
<sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" > 
<section name="TestConsoleApp.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /> 
</sectionGroup> 
<system.diagnostics> 
<sources> 
<source name="DefaultSource" switchName="DefaultSwitch"> 
      <listeners> 
       <add name="FileLog"/> 
       <!-- Uncomment the below section to write to the Application Event Log --> 
       <!--<add name="EventLog"/>--> 
      </listeners> 
     </source> 
    </sources> 
    <switches> 
     <add name="DefaultSwitch" value="Information" /> 
    </switches> 
    <sharedListeners> 
     <add name="FileLog" 
      type="Microsoft.VisualBasic.Logging.FileLogTraceListener, Microsoft.VisualBasic, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" 
      initializeData="FileLogWriter"/> 
     <!-- Uncomment the below section and replace APPLICATION_NAME with the name of your application to write to the Application Event Log --> 
     <!--<add name="EventLog" type="System.Diagnostics.EventLogTraceListener" initializeData="APPLICATION_NAME"/> --> 

    </sharedListeners> 
</system.diagnostics> 
<connectionStrings> 
<add name="Connect5" connectionString="Data Source=asapinc.local\SQLEXPRESSSERVER;Initial Catalog=ASAP_DATABASE; User ID=ASAP;Password=CLEAN1"/>

來源

2013-07-05 Will

我懷疑這是它看到這個詞xml紅色下劃線，但我注意到你在分號和用戶ID之間後有一個空格： ';用戶ID ='在你的配置文件中。 – Tim

聽起來像壞了配置文件..

http://social.msdn.microsoft.com/Forums/vstudio/en-US/41cfc8e2-c7f4-462d-9a43-e751500deb0a/configuration-system-failed-to-initialize-help-please

來源

2013-07-05 14:53:43 matzone

你應該在這條線

<?xml version="1.0" encoding="utf-8" ?>

Unexpected XML declaration. The XML Declaration must be the first node in the document and no white space characters are allowed to appears before it

來源

2013-07-05 15:27:14 Steve

對不起，在app.config文件中沒有任何地方出現紅色下劃線 – Will

但是在第一行之前是否有空格？ – Steve

SQL Server連接錯誤：配置系統初始化失敗

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