Creating a New Connection or Editing an Existing Connection Fails with "Could not load connection type: Oracle null"
(Doc ID 2546395.1)
Last updated on NOVEMBER 03, 2021
Applies to:Oracle SQL Developer - Version 19.1 and later
Information in this document applies to any platform.
Attempting to create a new connection or modify an existing connection with SQL Developer 19.1 fails with error:
This used to work, but suddenly started to fail.
Although, SQL Developer Data Modeler is still working fine.
Have already tried:
- Re-installing SQL Developer, but still has the same issue.
- Verifying that AppData folder does have Read/Write privileges.
- Backing up and deleting the following folders:
Restarting SQL Developer 'works' except you lose all of the existing connections.
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