Cannot delete group or policies after deleting all users about arsenal HOT 6 CLOSED

[devops@ws2 ~]$ aws --endpoint-url http://app1.lab.local:8600 iam list-attached-group-policies --group-name DirAccess 
{
    "AttachedPolicies": [
        {
            "PolicyName": "homedir", 
            "PolicyArn": "arn:aws:iam::060034739872:policy/homedir"
        }
    ]
}
[devops@ws2 ~]$  aws --endpoint-url http://app1.lab.local:8600 iam detach-group-policy --group-name DirAccess --policy-arn arn:aws:iam::060034739872:policy/homedir
[devops@ws2 ~]$  aws --endpoint-url http://app1.lab.local:8600 iam list-attached-group-policies --group-name DirAccess 
{
    "AttachedPolicies": []
}
[devops@ws2 ~]$  aws --endpoint-url http://app1.lab.local:8600 iam delete-group --group-name DirAccess

An error occurred (DeleteConflict) when calling the DeleteGroup operation: The request was rejected because it attempted to delete a resource that has attached subordinate entities. The error message describes these entities.
[devops@ws2 ~]$ 

[devops@ws2 ~]$ aws --endpoint-url http://app1.lab.local:8600 iam  get-group --group-name DirAccess

An error occurred (NoSuchEntity) when calling the GetGroup operation: The request was rejected because it referenced an entity that does not exist. The error message describes the entity.
[devops@ws2 ~]$ aws --endpoint-url http://app1.lab.local:8600 iam list-groups
{
    "Groups": [
        {
            "Path": "/", 
            "CreateDate": "2016-08-25T22:13:09Z", 
            "GroupId": "EHJCYAYXDUG02QSWM6BCCJ1RN20QTK0G", 
            "Arn": "arn:aws:iam::060034739872:group/DirAccess", 
            "GroupName": "DirAccess"
        }
    ]
}
[devops@ws2 ~]$