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"CFGFWK-42066: Missing driver class" Warning When Running the Reconfiguration Wizard From To (Doc ID 2791437.1)

Last updated on AUGUST 16, 2023

Applies to:

Oracle WebLogic Server - Version and later
Information in this document applies to any platform.


WebLogic Server version is being upgraded to using the below documentation:

Oracle Fusion Middleware Upgrading Oracle WebLogic Server 12c (
2 Roadmap for Upgrading Your Application Environment


When running the Reconfiguration Wizard ( the following warning screen is displayed while testing the JDBC Datasources:


  CFGFWK-42066: Missing driver class
  CAUSE: The driver class listed below was not found in the product installation:
  Vendor MS SQLServer Driver:
  A test will not be performed for any database connections using this driver.
  Action: Provide driver class




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