Question

当我尝试连接到sql server并且不明白为什么时，我在winform中收到此错误。这是错误：配置系统无法初始化。

这是我的代码：

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

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

这是我的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"/>

Answer 1

听起来像破坏的配置文件..

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

Answer 2

您应该会在此行中的xml字词上看到红色下划线

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

意外的XML声明。 XML声明必须是第一个节点在文档中，允许出现无空格字符 在它之前

SQL Server连接错误：配置系统无法初始化

2 个答案: