title: Expecting non-empty string for 'providerInvariantName' parameter error in c# application having access database
body: <p>I have a C# application having Access .accdb as a Database. Connection String are Managed by App.Config. I had developed project in 64 bit machine and when I installed application 32 bit machine at the time of Database connection error pops up that "Expecting non-empty string for 'providerInvariantName' parameter".
  Please help me.
  Thanks in advance.</p>