title: How do I resolve the error ORA-06413: Connection not open?
body: <p>My local environment VS2012</p>
  
  <p>Using Oracle 10g XE </p>
  
  <pre><code>Dim dbConn As New OleDbConnection
  
  Dim dbComm As OleDbCommand
  
  dbConn.ConnectionString = "Provider=msdaora;Data Source=XE;User ID=scott;Password=tiger"
  
  dbConn.Open()
  </code></pre>
  
  <p>Tip error: ORA-06413: Connection not open.</p>
  
  <p>Already check the TNSNAMES.ora, SQLNET.ora, LISTENER.ora and its nothing wrong.</p>
  
  <p>But why this error appear?
  :(</p>