Getting "Unable to check for available memory." on Oracle DB 18c

Question

I am trying to create a database in order to complete my self learning, but unfortunately I got unexpected error "Unable to check for available memory.", I am doing it using Database Configuration Assistant (DBCA).

My Oracle Database Version

Answer 1

This error as it says, indicate that the "DBCA" can not check for available memory. This happens when "DBCA" does not have permission to check.

To bypass this error, run your Command Prompt as Administrator before lunching "DBCA".

Answer 2

Add the following parameter to bypass the error:

dbca -J-Doracle.assistants.dbca.validate.ConfigurationParams=false &

Answer 3

Bypass via advanced setup

Run DBCA as admin and work your way through the advanced setup. I think this issue is avoided because it lets you manually enter, or use recommended defaults, for the memory section.