Troubleshooting#

This page covers common issues you may encounter when installing, onboarding, or running NemoClaw, along with their resolution steps.

Get Help

If your issue is not listed here, join the NemoClaw Discord channel to ask questions and get help from the community. You can also file an issue on GitHub.

Installation#

nemoclaw not found after install#

If you use nvm or fnm to manage Node.js, the installer may not update your current shell’s PATH. The nemoclaw binary is installed but the shell session does not know where to find it.

Run source ~/.bashrc (or source ~/.zshrc for zsh), or open a new terminal window.

Installer fails on unsupported platform#

The installer checks for a supported OS and architecture before proceeding. If you see an unsupported platform error, verify that you are running on a tested platform listed in the Container Runtimes table in the quickstart guide.

Node.js version is too old#

NemoClaw requires Node.js 22.16 or later. If the installer exits with a Node.js version error, check your current version:

$ node --version

If the version is below 22.16, install a supported release. If you use nvm, run:

$ nvm install 22
$ nvm use 22

Then re-run the installer.

Image push fails with out-of-memory errors#

The sandbox image is approximately 2.4 GB compressed. During image push, the Docker daemon, k3s, and the OpenShell gateway run alongside the export pipeline, which buffers decompressed layers in memory. On machines with less than 8 GB of RAM, this combined usage can trigger the OOM killer.

If you cannot add memory, configure at least 8 GB of swap to work around the issue at the cost of slower performance.

Docker is not running#

The installer and onboard wizard require Docker to be running. If you see a Docker connection error, start the Docker daemon:

$ sudo systemctl start docker

On macOS with Docker Desktop, open the Docker Desktop application and wait for it to finish starting before retrying.

Docker permission denied on Linux#

On Linux, if the Docker daemon is running but you see “permission denied” errors, your user may not be in the docker group. Add your user and activate the group in the current shell:

$ sudo usermod -aG docker $USER
$ newgrp docker

Then retry nemoclaw onboard.

macOS first-run failures#

The two most common first-run failures on macOS are missing developer tools and Docker connection errors.

To avoid these issues, install the prerequisites in the following order before running the NemoClaw installer:

  1. Install Xcode Command Line Tools (xcode-select --install). These are needed by the installer and Node.js toolchain.

  2. Install and start a supported container runtime (Docker Desktop or Colima). Without a running runtime, the installer cannot connect to Docker.

Permission errors during installation#

The NemoClaw installer does not require sudo or root. It installs Node.js via nvm and NemoClaw via npm, both into user-local directories. The installer also handles OpenShell installation automatically using a pinned release.

If you see permission errors during installation, they typically come from Docker, not the NemoClaw installer itself. Docker must be installed and running before you run the installer, and installing Docker may require elevated privileges on Linux.

npm install fails with permission errors#

If npm install fails with an EACCES permission error, do not run npm with sudo. Instead, configure npm to use a directory you own:

$ mkdir -p ~/.npm-global
$ npm config set prefix ~/.npm-global
$ export PATH=~/.npm-global/bin:$PATH

Add the export line to your ~/.bashrc or ~/.zshrc to make it permanent, then re-run the installer.

Installer fails on NVIDIA Jetson#

The installer auto-detects NVIDIA Jetson devices (Orin and Thor) and applies required host configuration before the normal install flow. If the Jetson setup step fails, verify that you have sudo access and that Docker is installed and running.

For JetPack 6 (L4T 36.x), the setup switches iptables to legacy mode and adjusts the Docker daemon configuration. For JetPack 7 (L4T 38.x / Thor), only bridge netfilter and sysctl settings are applied.

If the L4T version is not recognized, the setup step is skipped and the installer continues normally.

Port already in use#

The NemoClaw dashboard uses port 18789 by default and the gateway uses port 8080. If another process is already bound to one of these ports, onboarding fails. Identify the conflicting process, verify it is safe to stop, and terminate it:

$ sudo lsof -i :18789
$ kill <PID>

If the process does not exit, use kill -9 <PID> to force-terminate it. Then retry onboarding.

Alternatively, override the conflicting port with an environment variable instead of stopping the other process:

$ NEMOCLAW_DASHBOARD_PORT=19000 nemoclaw onboard

See Environment Variables for the full list of port overrides.

Running multiple sandboxes simultaneously#

Each sandbox requires its own dashboard port. If you onboard a second sandbox without overriding the port, onboarding fails because port 18789 is already claimed by the first sandbox.

Assign a distinct port to each sandbox at onboard time:

$ nemoclaw onboard                              # first sandbox — uses default 18789
$ NEMOCLAW_DASHBOARD_PORT=19000 nemoclaw onboard  # second sandbox — uses 19000

Each sandbox then has its own SSH tunnel and its own dashboard URL:

http://localhost:18789   ← first sandbox
http://localhost:19000   ← second sandbox

You can verify which tunnel belongs to which sandbox with:

$ openshell forward list

Onboarding#

Cgroup v2 errors during onboard#

Older NemoClaw releases relied on a Docker cgroup workaround on Ubuntu 24.04, DGX Spark, and WSL2. Current OpenShell releases handle that behavior themselves, so NemoClaw no longer requires a Spark-specific setup step.

If onboarding reports that Docker is missing or unreachable, fix Docker first and retry onboarding:

$ nemoclaw onboard

Podman is not a tested runtime. If onboarding or sandbox lifecycle fails, switch to a tested runtime (Docker Desktop, Colima, or Docker Engine) and rerun onboarding.

OpenShell version above maximum#

Each NemoClaw release validates against a range of tested OpenShell versions. If the installed OpenShell version exceeds the configured maximum, nemoclaw onboard exits with an error:

✗ openshell <version> is above the maximum supported by this NemoClaw release.
  blueprint.yaml max_openshell_version: <max>

Upgrade NemoClaw to a version that supports your OpenShell release, or install a supported OpenShell version from the OpenShell releases page.

The install-openshell.sh script also enforces this constraint and pins fresh installs to the validated maximum version.

Invalid sandbox name#

Sandbox names must follow RFC 1123 subdomain rules: lowercase alphanumeric characters and hyphens only, and must start and end with an alphanumeric character. Uppercase letters are automatically lowercased.

Names that collide with global CLI commands are also rejected. Reserved names include onboard, list, deploy, setup, start, stop, status, debug, uninstall, credentials, and help. Using a reserved name would cause the CLI to route to the global command instead of the sandbox.

If the name does not match these rules or is reserved, the wizard exits with an error. Choose a name such as my-assistant or dev1.

Sandbox creation fails on DGX#

On DGX machines, sandbox creation can fail if the gateway’s DNS has not finished propagating or if a stale port forward from a previous onboard run is still active.

Run nemoclaw onboard to retry. The wizard cleans up stale port forwards and waits for gateway readiness automatically.

Colima socket not detected (macOS)#

Newer Colima versions use the XDG base directory (~/.config/colima/default/docker.sock) instead of the legacy path (~/.colima/default/docker.sock). NemoClaw checks both paths. If neither is found, verify that Colima is running:

$ colima status

Sandbox creation killed by OOM (exit 137)#

On systems with 8 GB RAM or less and no swap configured, the sandbox image push can exhaust available memory and get killed by the Linux OOM killer (exit code 137).

NemoClaw automatically detects low memory during onboarding and prompts to create a 4 GB swap file. If this automatic step fails or you are using a custom setup flow, create swap manually before running nemoclaw onboard:

$ sudo dd if=/dev/zero of=/swapfile bs=1M count=4096 status=none
$ sudo chmod 600 /swapfile
$ sudo mkswap /swapfile
$ sudo swapon /swapfile
$ echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab
$ nemoclaw onboard

Runtime#

Reconnect after a host reboot#

After a host reboot, the container runtime, OpenShell gateway, and sandbox may not be running. Follow these steps to reconnect.

  1. Start the container runtime.

    • Linux: start Docker if it is not already running (sudo systemctl start docker)

    • macOS: open Docker Desktop or start Colima (colima start)

  2. Check sandbox state.

    $ openshell sandbox list

    If the sandbox shows Ready, skip to step 4.

  3. Restart the gateway (if needed).

    If the sandbox is not listed or the command fails, restart the OpenShell gateway:

    $ openshell gateway start --name nemoclaw

    Wait a few seconds, then re-check with openshell sandbox list.

  4. Reconnect.

    $ nemoclaw <name> connect

  5. Start host auxiliary services (if needed).

    If you use the cloudflared tunnel started by nemoclaw start, start it again:

    $ nemoclaw start

    Telegram, Discord, and Slack are handled by OpenShell-managed channel messaging configured at onboarding, not by a separate bridge process from nemoclaw start.

If the sandbox does not recover

If the sandbox remains missing after restarting the gateway, run nemoclaw onboard to recreate it. The wizard prompts for confirmation before destroying an existing sandbox. If you confirm, it destroys and recreates the sandbox. Workspace files (SOUL.md, USER.md, IDENTITY.md, AGENTS.md, MEMORY.md, and daily memory notes) are lost. Back up your workspace first by following the instructions at Back Up and Restore.

Sandbox is running an outdated agent version#

After upgrading NemoClaw, nemoclaw <name> connect and nemoclaw <name> status warn if the sandbox is running an older agent version than the current image.

To upgrade the sandbox while preserving workspace state, run:

$ nemoclaw <name> rebuild

The rebuild command backs up state, destroys the old sandbox, recreates it with the current image, and restores state. Create a snapshot before rebuilding if you want an additional safety net:

$ nemoclaw <name> snapshot create
$ nemoclaw <name> rebuild

Sandbox shows as stopped#

The sandbox may have been stopped or deleted. Run nemoclaw onboard to recreate the sandbox from the same blueprint and policy definitions.

Status shows “not running” inside the sandbox#

This is expected behavior. When checking status inside an active sandbox, host-side sandbox state and inference configuration are not inspectable. The status command detects the sandbox context and reports “active (inside sandbox)” instead.

Run openshell sandbox list on the host to check the underlying sandbox state.

Inference requests time out#

Verify that the inference provider endpoint is reachable from the host. Check the active provider and endpoint:

$ nemoclaw <name> status

For local Ollama and local vLLM, nemoclaw <name> status also prints an Inference line that probes the host-side health endpoint directly. If that line shows unreachable, start the local backend first and then retry the request.

If the endpoint is correct but requests still fail, check for network policy rules that may block the connection. Then verify the credential and base URL for the provider you selected during onboarding.

For local providers (Ollama, vLLM, NIM), the default timeout is 180 seconds. If large prompts still cause timeouts, increase it with NEMOCLAW_LOCAL_INFERENCE_TIMEOUT before re-running onboard:

$ export NEMOCLAW_LOCAL_INFERENCE_TIMEOUT=300
$ nemoclaw onboard

Agent fails at runtime after onboarding succeeds with a compatible endpoint#

Some OpenAI-compatible servers (such as SGLang) expose /v1/responses and pass the onboarding validation probe, but their streaming mode is incomplete. OpenClaw requires granular streaming events like response.output_text.delta that these backends do not emit.

NemoClaw now tests streaming events during the /v1/responses probe and falls back to /v1/chat/completions automatically. If you onboarded before this check was added, re-run onboarding so the wizard re-probes the endpoint and bakes the correct API path into the image:

$ nemoclaw onboard

To force /v1/chat/completions without re-probing, set NEMOCLAW_PREFERRED_API:

$ NEMOCLAW_PREFERRED_API=openai-completions nemoclaw onboard

Do not rely on NEMOCLAW_INFERENCE_API_OVERRIDE alone — it patches the config at container startup but does not update the Dockerfile ARG baked into the image. A fresh nemoclaw onboard is the reliable fix.

NEMOCLAW_DISABLE_DEVICE_AUTH=1 does not change an existing sandbox#

This is expected behavior. NEMOCLAW_DISABLE_DEVICE_AUTH is a build-time setting used when NemoClaw creates the sandbox image. Changing or exporting it later does not rewrite the baked openclaw.json inside an existing sandbox.

If you need a different device-auth setting, rerun onboarding so NemoClaw rebuilds the sandbox image with the desired configuration. For the security trade-offs, refer to Security Best Practices.

openclaw doctor --fix cannot repair Discord channel config inside the sandbox#

This is expected in NemoClaw-managed sandboxes. NemoClaw bakes channel entries into /sandbox/.openclaw/openclaw.json at image build time, and OpenShell keeps that path read-only at runtime.

As a result, commands that try to rewrite the baked config from inside the sandbox, including openclaw doctor --fix, cannot repair Discord, Telegram, or Slack channel entries in place.

If your Discord channel config is wrong, rerun onboarding so NemoClaw rebuilds the sandbox image with the correct messaging selection. Do not treat a failed doctor --fix run as proof that the Discord gateway path itself is broken.

If openclaw doctor reports that it moved Telegram single-account values under channels.telegram.accounts.default, rerun onboarding and rebuild the sandbox rather than trying to patch openclaw.json in place. Current NemoClaw rebuilds bake Telegram in the account-based layout and set Telegram group chats to groupPolicy: open, which avoids the empty groupAllowFrom warning path for default group-chat access.

Discord bot logs in, but the channel still does not work#

Separate the problem into two parts:

  1. Baked config and provider wiring

    Check that onboarding selected Discord and that the sandbox was created with the Discord messaging provider attached. If Discord was skipped during onboarding, rerun onboarding and select Discord again.

  2. Native Discord gateway path

    Successful login alone does not prove that Discord works end to end. Discord also needs a working gateway connection to gateway.discord.gg. If logs show errors such as getaddrinfo EAI_AGAIN gateway.discord.gg, repeated reconnect loops, or a 400 response while probing the gateway path, the problem is usually in the native gateway/proxy path rather than in the baked config.

Common signs of a native gateway-path failure:

  • REST calls to discord.com succeed, but the Discord channel never becomes healthy

  • gateway.discord.gg fails with DNS resolution errors

  • the WebSocket path returns 400 instead of opening a tunnel

  • native command deployment fails even though the bot token itself is valid

In that case:

  • keep the Discord policy preset applied

  • verify the sandbox was created with the Discord provider attached

  • inspect gateway logs and blocked requests with openshell term

  • treat the failure as a native Discord gateway problem, not as a bridge startup problem

Landlock filesystem restrictions silently degraded#

After sandbox creation, NemoClaw checks whether the host kernel supports Landlock (Linux 5.13+). If the kernel is too old or you are running on macOS (where the Docker VM kernel may lack Landlock), a warning prints:

⚠ Landlock: Docker VM kernel <version> does not support Landlock (requires ≥5.13).
  Sandbox filesystem restrictions will silently degrade (best_effort mode).

This warning is informational and does not block sandbox creation. The sandbox runs without kernel-level filesystem restrictions, relying on container mount configuration instead. For full filesystem enforcement, run on a Linux kernel 5.13 or later (Ubuntu 22.04 LTS and later include Landlock support).

Sandbox lost after gateway restart#

Sandboxes created with OpenShell versions older than 0.0.24 can become unreachable after a gateway restart because SSH secrets were not persisted. Running nemoclaw onboard automatically upgrades OpenShell to 0.0.24 or later during the preflight check. After the upgrade, recreate the sandbox with nemoclaw onboard.

Agent cannot reach external hosts through a proxy#

NemoClaw uses a default proxy address of 10.200.0.1:3128 (the OpenShell-injected gateway). If your environment uses a different proxy, set NEMOCLAW_PROXY_HOST and NEMOCLAW_PROXY_PORT before onboarding:

$ export NEMOCLAW_PROXY_HOST=proxy.example.com
$ export NEMOCLAW_PROXY_PORT=8080
$ nemoclaw onboard

These are build-time settings baked into the sandbox image. Changing them after onboarding requires re-running nemoclaw onboard to rebuild the image.

Agent cannot reach an external host#

OpenShell blocks outbound connections to hosts not listed in the network policy. Open the TUI to see blocked requests and approve them:

$ openshell term

To permanently allow an endpoint, add it to the network policy. Refer to Customize the Network Policy for details.

Dashboard not reachable after setting NEMOCLAW_DASHBOARD_PORT#

If you ran NEMOCLAW_DASHBOARD_PORT=<port> nemoclaw onboard and onboarding completed but the dashboard URL is unreachable (browser shows connection refused or the page fails to load), the sandbox was most likely created with an older NemoClaw version that had a bug where NEMOCLAW_DASHBOARD_PORT was parsed on the host but not passed into the sandbox at startup. The gateway inside the sandbox continued listening on the default port 18789 while the SSH tunnel forwarded the custom port — leaving nothing at the other end of the tunnel.

Re-run onboarding on the current NemoClaw release with the desired port. This rebuilds the sandbox image with the gateway bound to the configured port:

$ NEMOCLAW_DASHBOARD_PORT=19000 nemoclaw onboard

If you need to run multiple sandboxes at different ports at the same time, see Running multiple sandboxes simultaneously.

Blueprint run failed#

View the error output for the failed blueprint run:

$ nemoclaw <name> logs

Use --follow to stream logs in real time while debugging.

Windows Subsystem for Linux#

For environment setup steps, see Windows Prerequisites.

wsl --install --no-distribution returns Forbidden (403)#

Check your network connectivity. If you are behind a VPN, try reconnecting or switching to a different network.

wsl -d Ubuntu says “There is no distribution with the supplied name”#

The Ubuntu package was installed with --no-launch but never registered. Run ubuntu.exe install --root from PowerShell to register it, or reinstall without --no-launch:

$ wsl --unregister Ubuntu
$ wsl --install -d Ubuntu

docker info fails inside WSL#

Confirm that Docker Desktop is running and that WSL integration is enabled for Ubuntu (Settings > Resources > WSL integration). Then restart WSL:

$ wsl --shutdown
$ wsl -d Ubuntu
$ docker info

Ollama inference fails or hangs in WSL#

Ollama configures context length based on your hardware. On some GPUs (for example RTX 3500), the default context length is not sufficient for OpenClaw. Force a larger context length:

$ pkill -f 'ollama serve'
$ OLLAMA_CONTEXT_LENGTH=16384 ollama serve

Verify that Ollama inference works:

$ echo "Hello" | ollama run <model-id>

Replace <model-id> with the model you selected during onboarding (for example qwen3.5:4b).

If ollama serve fails with Error: listen tcp 127.0.0.1:11434: bind: address already in use, check whether Ollama is configured for automatic startup:

$ sudo systemctl status ollama

If it is active, stop it first, then start with the custom context length:

$ sudo systemctl stop ollama
$ OLLAMA_CONTEXT_LENGTH=16384 ollama serve

For additional troubleshooting, see the Quickstart and Windows Setup pages.

Podman#

Podman is not a tested runtime. OpenShell officially documents Docker-based runtimes only. If you encounter issues with Podman, switch to a tested runtime (Docker Engine, Docker Desktop, or Colima) and rerun onboarding.

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