I am trying to connect to oracle database from .net core 3.1 using ado.net here's my code
private OracleConnection GetOracleConnection()
{
string conString = "Data Source=Q550.adr.XXXX.com;Persist Security,Info=True;User ID=XXXX;Password=CCC39";
OracleConnection con = new OracleConnection(conString);
return con;
}
but when this function executes following exception occured at line number 2
System.TypeInitializationException: 'The type initializer for 'OracleInternal.Common.ProviderConfig' threw an exception
FileNotFoundException: Could not load file or assembly 'System.Configuration.ConfigurationManager, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified. **
Can anyone tell me what's happening ??
You can Install System.Configuration.ConfigurationManager from Nuget
Install-Package System.Configuration.ConfigurationManager
This problem is a known issue as you can see here and the recommended solution is nuget package
https://github.com/pusher/pusher-websocket-dotnet/issues/34
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