Unable to grant role as SYSDBA to system user from dropdown option in SQL Dev.

Summary:

Content (required):

Hi team,

I am unable to grant role as SYSDBA to the system user having been granted as DBA role from the SQL query. But when I am trying to create the connection using system user credentials, and through the drop-down option selecting SYSDBA, it says "insufficient privileges", after testing the connection. I have also attached a screenshot of the error.

Thanks

Ankan

Version (include the version you are using, if applicable):

Version 4.0.2.15

Code Snippet (add any code snippets that support your topic, if applicable):