create a non-CDB database on ExaCS with dbaasapi fails

I am trying to create a non-CDB database on ExaCS with Dbaaspi utility it fails

Error I am getting

[root@]# [root@tagicgcmum-mn9we1 scripts]# /var/opt/oracle/dbaasapi/dbaasapi -i /home/oracle/scripts/createdb.json

garbage after JSON object, at character offset 13 (before " "db",\n  "action"...") at /var/opt/oracle/dbaasapi/lib/dbaasapi.pm line 1355.

Below are the steps i am following

1. Create file dbcreate.json

{

  "object": "db",

"action": "start",

  "operation": "createdb",

  "params": {

    "nodelist": "",

    "cdb": "no",

    "bp": "JAN2021",

    "dbname": "TAGICPROD",

    "edition": "EE_EP",

    "version": "12.1.0.2",

    "adminPassword": "Oracle123",

    "charset": "WE8MSWIN1252",

    "ncharset": "WE8MSWIN1252",

    "backupDestination": "NONE",

  },

  "outputfile": "/home/oracle/dbinput/createdb.out",