Can't add backend server to existing Load Balancer

[ColorlessHuman]

Been trying to add an ECS instance to an existing LB
Using this task:

- name: set backend server
      ali_slb_server:
        alicloud_access_key: '{{ alicloud_access_key }}'
        alicloud_secret_key: '{{ alicloud_secret_key }}'
        load_balancer_id: '{{ load_balancer_id }}'
        backend_servers:
          - server_id: '{{ instance_id }}'
            weight: 100

All i get is this huge error

fatal: [localhost]: FAILED! => {"changed": false, "module_stderr": "No handlers could be found for logger \"footmark\"\nTraceback (most recent call last):\n  File \"/home/kavach/.ansible/tmp/ansible-tmp-15
45898022.28-2372019141370/AnsiballZ_ali_slb_server.py\", line 113, in <module>\n    _ansiballz_main()\n  File \"/home/kavach/.ansible/tmp/ansible-tmp-1545898022.28-2372019141370/AnsiballZ_ali_slb_server.py
\", line 105, in _ansiballz_main\n    invoke_module(zipped_mod, temp_path, ANSIBALLZ_PARAMS)\n  File \"/home/kavach/.ansible/tmp/ansible-tmp-1545898022.28-2372019141370/AnsiballZ_ali_slb_server.py\", line
48, in invoke_module\n    imp.load_module('__main__', mod, module, MOD_DESC)\n  File \"/tmp/ansible_ali_slb_server_payload_DyCSp9/__main__.py\", line 436, in <module>\n  File \"/tmp/ansible_ali_slb_server_
payload_DyCSp9/__main__.py\", line 396, in main\n  File \"/tmp/ansible_ali_slb_server_payload_DyCSp9/__main__.py\", line 193, in add_set_backend_servers\n  File \"/home/kavach/.virtualenvs/ansible/local/li
b/python2.7/site-packages/footmark/slb/connection.py\", line 1006, in describe_load_balancer_attribute\n    return self.get_object('DescribeLoadBalancerAttribute', params, LoadBalancer)\n  File \"/home/kav
ach/.virtualenvs/ansible/local/lib/python2.7/site-packages/footmark/connection.py\", line 269, in get_object\n    raise e\naliyunsdkcore.acs_exception.exceptions.ServerException: HTTP Status: 404 Error:Inv
alidLoadBalancerId.NotFound The specified LoadBalancerId does not exist. RequestID: 6797EB12-80F0-4A32-9BA6-15D532158CD7\n", "module_stdout": "", "msg": "MODULE FAILURE\nSee stdout/stderr for the exact err
or", "rc": 1}

This InvalidLoadBalancerId.NotFound makes no sense because the LB exists and the id is valid.

Tried gathering slb server facts with the same LB ID and it doesn't throw any error, proving that the LB exists.

- name: Find all backend server health status in specified region
      ali_slb_server_facts:
        alicloud_access_key: '{{ alicloud_access_key }}'
        alicloud_secret_key: '{{ alicloud_secret_key }}'
        alicloud_region: '{{ alicloud_region }}'
        load_balancer_id: '{{ load_balancer_id }}'
      register: all_backend_server
    - debug: var=all_backend_server

[lixue323]

I am sorry to reply so late. Do you still have this issue?

[ColorlessHuman]

No. The issue can be closed. While I figured out my issue, I don't remember how I fixed it. It's been an year and I'm working on something else now.