1463678 - Error: "Failed to load database information. Details: The database DLL 'crdb_dao.dll' could not be loaded"

SAP Knowledge Base Article - Public

1463678 - Error: "Failed to load database information. Details: The database DLL 'crdb_dao.dll' could not be loaded"

Symptom

  • Application uses the Crystal Reports database driver crdb_dao.dll.
  • Report is connecting to an Access database or flat file such as CSV.
  • The application is converted from 32-bit to 64-bit using Crystal Reports Basic for Visual Studio 2008 (10.5.x).
  • The issue will also occur with Crystal Reports for VS .NET 2005 (10.2.x).
  • Error: "Failed to load database information. Details: The database DLL 'crdb_dao.dll' could not be loaded".

Cause

  • The driver crdb_dao.dll used the Microsoft DAO engine.
  • There is no 64-bit DAO engine.
  • Thus there is no 64-bit crdb_dao.dll.

Resolution

  1. Do not use the MS DAO engine.
  2. Create an ADO .NET dataset.
  3. Point the report to the dataset.

Alternately, create a 64-bit ODBC data source and connect the report to this data source.

Keywords

Forum Thread , KBA , BI-DEV-NET-SDK , .NET SDK / COM SDK , How To

Product

SAP Crystal Reports 10.0