How to setup versioning?

Hi,
I tried changing the default policy to have the new ‘v1’ access right and for some reason, I now get
Cannot GET /v1/
error message back if I try with the new URL http://<url>/api-slug/v1/.

For reference, here’s the API export:

 {
"id": "595e5d0e08e9470001d408b5",
"name": "test",
"slug": "test",
"api_id": "ff8dacf41a0e4e2769350f6e72f798dc",
"org_id": "595bcd331cbfd800013b226e",
"use_keyless": false,
"use_oauth2": false,
"use_openid": false,
"openid_options": {
    "providers": [],
    "segregate_by_client": false
},
"oauth_meta": {
    "allowed_access_types": [],
    "allowed_authorize_types": [],
    "auth_login_redirect": ""
},
"auth": {
    "use_param": false,
    "param_name": "",
    "use_cookie": false,
    "cookie_name": "",
    "auth_header_name": "Authorization"
},
"use_basic_auth": false,
"enable_jwt": false,
"use_standard_auth": true,
"enable_coprocess_auth": false,
"jwt_signing_method": "",
"jwt_source": "",
"jwt_identity_base_field": "",
"jwt_client_base_field": "",
"jwt_policy_field_name": "",
"notifications": {
    "shared_secret": "",
    "oauth_on_keychange_url": ""
},
"enable_signature_checking": false,
"hmac_allowed_clock_skew": -1,
"base_identity_provided_by": "",
"definition": {
    "location": "url",
    "key": "x-api-version"
},
"version_data": {
    "not_versioned": false,
    "versions": {
        "v1": {
            "name": "v1",
            "expires": "",
            "paths": {
                "ignored": [],
                "white_list": [],
                "black_list": []
            },
            "use_extended_paths": true,
            "extended_paths": {},
            "global_headers": {},
            "global_headers_remove": [],
            "global_size_limit": 0,
            "override_target": ""
        }
    }
},
"uptime_tests": {
    "check_list": [],
    "config": {
        "expire_utime_after": 0,
        "service_discovery": {
            "use_discovery_service": false,
            "query_endpoint": "",
            "use_nested_query": false,
            "parent_data_path": "",
            "data_path": "",
            "port_data_path": "",
            "target_path": "",
            "use_target_list": false,
            "cache_timeout": 60,
            "endpoint_returns_list": false
        },
        "recheck_wait": 0
    }
},
"proxy": {
    "preserve_host_header": false,
    "listen_path": "/ff8dacf41a0e4e2769350f6e72f798dc/",
    "target_url": "http://<URL>",
    "strip_listen_path": true,
    "enable_load_balancing": false,
    "target_list": [],
    "check_host_against_uptime_tests": false,
    "service_discovery": {
        "use_discovery_service": false,
        "query_endpoint": "",
        "use_nested_query": false,
        "parent_data_path": "",
        "data_path": "hostname",
        "port_data_path": "port",
        "target_path": "/api-slug",
        "use_target_list": false,
        "cache_timeout": 60,
        "endpoint_returns_list": false
    }
},
"disable_rate_limit": false,
"disable_quota": false,
"custom_middleware": {
    "pre": [],
    "post": [],
    "post_key_auth": [],
    "auth_check": {
        "name": "",
        "path": "",
        "require_session": false
    },
    "response": [],
    "driver": "",
    "id_extractor": {
        "extract_from": "",
        "extract_with": "",
        "extractor_config": {}
    }
},
"custom_middleware_bundle": "",
"cache_options": {
    "cache_timeout": 60,
    "enable_cache": true,
    "cache_all_safe_requests": false,
    "cache_response_codes": [],
    "enable_upstream_cache_control": false
},
"session_lifetime": 0,
"active": true,
"auth_provider": {
    "name": "",
    "storage_engine": "",
    "meta": {}
},
"session_provider": {
    "name": "",
    "storage_engine": "",
    "meta": null
},
"event_handlers": {
    "events": {}
},
"enable_batch_request_support": false,
"enable_ip_whitelisting": false,
"allowed_ips": [],
"dont_set_quota_on_create": false,
"expire_analytics_after": 0,
"response_processors": [],
"CORS": {
    "enable": true,
    "allowed_origins": [
        "http://localhost"
    ],
    "allowed_methods": [
        "GET",
        "OPTIONS"
    ],
    "allowed_headers": [],
    "exposed_headers": [],
    "allow_credentials": false,
    "max_age": 24,
    "options_passthrough": true,
    "debug": false
},
"domain": "",
"do_not_track": false,
"tags": [],
"enable_context_vars": false
}