Not able to authenticate using config file on windows while running packer build

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I have written below packer configuration file

source "oracle-oci" "example" {
availability_domain = "fGpl:US-ASHBURN-AD-1"
base_image_ocid = "ocid1.image.oc1.iad.aaaaaaaas2dadadadadsadtjobv2pgprzvsvdttho3a"
image_name = "OCI-Custom-Image"
shape = "VM.Standard2.1"
ssh_username = "opc"
access_cfg_file = "C:\\Users\\Anandkumar\\.oci\\config"
subnet_ocid = "ocid1.subnet.oc1.iad.aaaaaaaafonrdwsc6zvaswtwq4dsmilsx67d6q"
}

build {
sources = ["source.oracle-oci.example"]

provisioner "shell" {
inline = ["echo Configuration is going to Start",
"sudo yum install bind-utils"
]
}
}

When I run packer build I am getting the below error. Packer version 1.7.4

PS C:\Users\Anandkumar\OneDrive - Personal\Hashicorp Examples\Packer> packer build .\build.pkr.hcl
oracle-oci.example: output will be in this color.

==> oracle-oci.example: Creating temporary ssh key for instance...
==> oracle-oci.example: Creating instance...
==> oracle-oci.example: Problem creating instance: Service error:NotAuthorizedOrNotFound. Authorization failed or requested resource not found.. http status code: 404. Opc request id: 50dfe82afe71836965e6b7d29cf89f9a/4B6825337CBA98FF424BED9DB7AAC466/D068EFB76A5CBE95E943B0DE186F9985
Build 'oracle-oci.example' errored after 2 seconds 126 milliseconds: Problem creating instance: Service error:NotAuthorizedOrNotFound. Authorization failed or requested resource not found.. http status code: 404. Opc request id: 50dfe82afe71836965e6b7d29cf89f9a/4B6825337CBA98FF424BED9DB7AAC466/D068EFB76A5CBE95E943B0DE186F9985

==> Wait completed after 2 seconds 126 milliseconds

==> Some builds didn't complete successfully and had errors:
--> oracle-oci.example: Problem creating instance: Service error:NotAuthorizedOrNotFound. Authorization failed or requested resource not found.. http status code: 404. Opc request id: 50dfe82afe71836965e6b7d29cf89f9a/4B6825337CBA98FF424BED9DB7AAC466/D068EFB76A5CBE95E943B0DE186F9985

==> Builds finished but no artifacts were created.
PS C:\Users\Anandkumar\OneDrive - Personal\Hashicorp Examples\Packer>

I am able to run OCI CLI commands from windows command prompt without any issues. I am not getting why its not getting authenticated using confi file when running packer build command.