Why Does My ConfigurationManager.ConnectionStrings Fail with a 'Configuration System Failed to Initialize' Error?

Resolving "Configuration System Failed to Initialize" Error in Accessing Connection Strings

The "Configuration system failed to initialize" error typically occurs when the configuration file, usually "web.config" or "app.config," is not properly structured or has missing elements. In your specific case, while attempting to connect to a database using ConfigurationManager.ConnectionStrings, this error arose.

To resolve this issue, ensure that your configuration file adheres to the following structure:

<?xml version="1.0"?>
<configuration>
    <configSections>
        <sectionGroup name="applicationSettings" 
                      type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">

            <section name="YourProjectName.Properties.Settings" 
                     type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" 
                     requirePermission="false" />

        </sectionGroup>
    </configSections>
</configuration>

In this structure, pay attention to the following:

• The first child element within the configuration element should be configSections.
• Inside the section element, replace YourProjectName with the actual name of your project in the name attribute.

Furthermore, ensure that the section element's type attribute matches the type specified in the code. If you have a custom configuration section defined in a separate assembly, the type attribute should point to the fully qualified type name in that assembly.

By implementing these adjustments, you can resolve the "Configuration system failed to initialize" error and establish a successful database connection using ConfigurationManager.ConnectionStrings.

The above is the detailed content of Why Does My ConfigurationManager.ConnectionStrings Fail with a 'Configuration System Failed to Initialize' Error?. For more information, please follow other related articles on the PHP Chinese website!