OCI Object Storage Error : Either the Bucket Named Does not Exist in the Namespace or You are not Authorized to Access it

OCI Object Storage Error : Either the Bucket Named '<Object Storage Bucket Name>' Does not Exist in the Namespace '<Namespace>' or You are not Authorized to Access it 

While uploading files to OCI Object Storage bucket , i came across this error. I am penning down the solution for this issue, so someone can be benifitted. 

This is caused by the Lack of required Policy/Permissions on Object Storage bucket.

Solution:

1) LOGIN into OCI Cloud Console.
2) Click on "Sandwitched MENU" on left side top of the screen
3) Then you will see "Identity & security" at the bottom of the screen

Oci identity and security Menu


4) Click on "Identity & security", then click on "Groups", then click on "Create Group" and create a group by specifying "NAME" and "DESCRIPTION" and click on
"SUBMIT" button. For example group name is "ObjectAdmins"

OCI Create Group


5) Click on "Policies", then click on "Create Policy", then specify "NAME", "DESCRIPTION", add below Policy Statements and Click on "Create". For
example, NAME is ObjectStorageAccess

Allow group ObjectAdmins to manage buckets in tenancy
Allow group ObjectAdmins to manage objects in tenancy

6) Click on "GROUPS", click on already created group name "ObjectAdmins", then click on "Add User to Group", select the user and click on "ADD"