While I try to create database by using DBCA on 18c Grid Infrastructure I am hitting below screen:

My steps are:

1. Installed 18.3 Grid Infrastructure.

2. Created DATA diskgroup with RDBMS compatibility 12.2

3. Installed 11.2.0.3 RDBMS software

4. Tried to create database using DBCA from 11c home and got the this failure

If I ignore the above failure I can create database using DBCA successfully. After making some search Notice that crs_stat is not available on 18c Grid Infrastructure.

If you are using DBCA from 12 home you are also getting same error during DBCA

You can ignore this error safely!