[Bug] - Error requesting screenshot from kasm (caa4ef49142f4ea096c48ed71c1adec9) with error ('bool' object has no attribute 'content') and Error calling KasmVNC

[meisbadatcoding]

Describe the bug When I try to connect to any server, it gives me the following two issues:

Error calling KasmVNC API (get_screenshot?width=1000&height=1000) for kasm_id (caa4ef49-142f-4ea0-96c4-8ed71c1adec9) : HTTPSConnectionPool(host='192.168.12.236', port=443): Max retries exceeded with url: /api/get_screenshot?width=1000&height=1000 (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x767dddb45730>: Failed to establish a new connection: [Errno 111] Connection refused'))

and

Error requesting screenshot from kasm (caa4ef49142f4ea096c48ed71c1adec9) with error ('bool' object has no attribute 'content')

To Reproduce Steps to reproduce the behavior:

1. Create a multipass VM on mac (It's an old Intel MacBook).
2. Install kasm
3. Create a new server without the kasm desktop service
4. Create a new workspace without kasm desktop service
5. Try to connect and see error

Expected behavior I expect it to actually connect.

Workspaces Version Newest one, I think 1.16

Workspaces Installation Method Single Server

Client Browser (please complete the following information):

• OS: Windows 10
• Browser: Chrome
• Version 133

Workspace Server Information (please provide the output of the following commands):

• uname -a Result:

  Linux ubuntu 6.8.0-49-generic #49-Ubuntu SMP PREEMPT_DYNAMIC Mon Nov  4 02:06:24 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

• cat /etc/os-release Result:

  PRETTY_NAME="Ubuntu 24.04.1 LTS"
  NAME="Ubuntu"
  VERSION_ID="24.04"
  VERSION="24.04.1 LTS (Noble Numbat)"
  VERSION_CODENAME=noble
  ID=ubuntu
  ID_LIKE=debian
  HOME_URL="https://www.ubuntu.com/"
  SUPPORT_URL="https://help.ubuntu.com/"
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
  PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
  UBUNTU_CODENAME=noble
  LOGO=ubuntu-logo

• sudo docker info Result:

  
  Client: Docker Engine - Community
  Version:    27.3.1
  Context:    default
  Debug Mode: false
  Plugins:
  buildx: Docker Buildx (Docker Inc.)
  Version:  v0.17.1
  Path:     /usr/libexec/docker/cli-plugins/docker-buildx
  compose: Docker Compose (Docker Inc.)
  Version:  v2.5.0
  Path:     /usr/local/lib/docker/cli-plugins/docker-compose

Server: Containers: 33 Running: 11 Paused: 0 Stopped: 22 Images: 20 Server Version: 27.3.1 Storage Driver: overlay2 Backing Filesystem: extfs Supports d_type: true Using metacopy: false Native Overlay Diff: true userxattr: false Logging Driver: json-file Cgroup Driver: systemd Cgroup Version: 2 Plugins: Volume: local Network: bridge host ipvlan kasmweb/sidecar:1.1 macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog Swarm: inactive Runtimes: io.containerd.runc.v2 runc Default Runtime: runc Init Binary: docker-init containerd version: 57f17b0a6295a39009d861b89e3b3b87b005ca27 runc version: v1.1.14-0-g2c9f560 init version: de40ad0 Security Options: apparmor seccomp Profile: builtin cgroupns Kernel Version: 6.8.0-49-generic Operating System: Ubuntu 24.04.1 LTS OSType: linux Architecture: x86_64 CPUs: 4 Total Memory: 7.749GiB Name: ubuntu ID: 3445109c-89a8-4bac-9d42-27ff89e7eda2 Docker Root Dir: /var/lib/docker Debug Mode: false Experimental: false Insecure Registries: 127.0.0.0/8 Live Restore Enabled: false

WARNING: bridge-nf-call-iptables is disabled WARNING: bridge-nf-call-ip6tables is disabled

 - `sudo docker ps | grep kasm`
Result:

806e8bfa91c8 kasmweb/proxy:1.16.1 "/docker-entrypoint.…" 20 hours ago Up 19 hours 80/tcp, 0.0.0.0:8443->8443/tcp, :::8443->8443/tcp kasm_proxy 2a6db53bfefe kasmweb/agent:1.16.1 "/bin/sh -c '/usr/bi…" 5 days ago Up 19 hours (healthy) 4444/tcp kasm_agent 2cf69b3ed76e kasmweb/share:1.16.1 "/bin/sh -c '/usr/bi…" 5 days ago Up 19 hours (healthy) 8182/tcp kasm_share 7a72442cdcce kasmweb/rdp-https-gateway:1.16.1 "/opt/rdpgw/rdpgw" 5 days ago Up 5 seconds (healthy) kasm_rdp_https_gateway 47d3e9a48adf kasmweb/manager:1.16.1 "/usr/bin/startup.sh…" 5 days ago Up 19 hours (healthy) 8181/tcp kasm_manager a8168e4cf3f4 kasmweb/rdp-gateway:1.16.1 "/start.sh" 5 days ago Up 22 seconds (healthy) 0.0.0.0:3389->3389/tcp, :::3389->3389/tcp kasm_rdp_gateway 3d45be50a1f7 kasmweb/kasm-guac:1.16.1 "/dockerentrypoint.sh" 5 days ago Up 19 hours (unhealthy) kasm_guac a918134300fb redis:5-alpine "docker-entrypoint.s…" 5 days ago Up 19 hours 6379/tcp kasm_redis d30c6995211c kasmweb/api:1.16.1 "/bin/sh -c '/usr/bi…" 5 days ago Up 19 hours (healthy) 8080/tcp kasm_api 60587a1ac65f postgres:14-alpine "docker-entrypoint.s…" 5 days ago Up 19 hours (healthy) 5432/tcp kasm_db

**Additional context**
It's a multipass VM on a MacBook from 2015, so the software might be a bit old. 
(I closed and reopened it because the issue is back, I'm not sure how I connected last time)
I saw this reddit post but it didn't help that much: https://www.reddit.com/r/kasmweb/comments/18cqxj4/error_when_trying_to_connect_to_a_container/

[mmcclaskey]

In the steps you said you create a Server without the desktop service installed. What kind of server is it? If you are connecting to a Windows server, the desktop service is required to be installed in order for some features to work. The screenshot api call is one such feature.