<PackageReference Include="System.Configuration.ConfigurationManager" Version="10.0.2" />

System.Configuration.ConfigurationException

The exception that is thrown when a configuration system error has occurred.
namespace System.Configuration { public class ConfigurationException : SystemException { public virtual string BareMessage { get; } public virtual string Filename { get; } public virtual int Line { get; } protected ConfigurationException(SerializationInfo info, StreamingContext context); public ConfigurationException(); public ConfigurationException(string message); public ConfigurationException(string message, Exception inner); public ConfigurationException(string message, XmlNode node); public ConfigurationException(string message, Exception inner, XmlNode node); public ConfigurationException(string message, string filename, int line); public ConfigurationException(string message, Exception inner, string filename, int line); public static string GetXmlNodeFilename(XmlNode node); public static int GetXmlNodeLineNumber(XmlNode node); } }