Looks like the MySql connection pool is loosing the connection string. What version of the mysql provider are you using?
________________________________ From: Karim Bourouba <[email protected]> To: [email protected] Sent: Wednesday, May 20, 2009 11:57:24 AM Subject: Strange Syste.ArgumentNullException Hi All, I am getting a strange System.ArgumentNullException when using a AdoNetAppender. The message I am passing is is caught and logged to the DB, but on the console I am getting the following error: log4net:ERROR [AdoNetAppender] Could not open database connection [] System.ArgumentNullException: Key cannot be null. Parameter name: key at System.Collections.Hashtable.get_Item(Object key) at MySql.Data.MySqlClient.MySqlPoolManager.GetPool(MySqlConnectionStringBuilder settings) at MySql.Data.MySqlClient.MySqlConnection.Open() at log4net.Appender.AdoNetAppender.InitializeDatabaseConnection() I have checked my app.config, but I am unsure as to where this error is coming from and I am also unsure as to why the message I am trying to log is getting logged to my DB. Could someone help me out please? I am certain that someone on this list will be able to give me a clue as to where to start looking... ________________________________ Get the New Internet Explore 8 Optimised for MSN. Download Now
