How to Fix Common OpenClaw Installation Errors

OpenClaw installation errors are frustrating but most are caused by a small set of common issues: Python version mismatches, dependency conflicts, API key problems, and channel configuration mistakes. This troubleshooting guide covers the errors most frequently reported in the OpenClaw community.

Error: "Python 3.11+ required"

Symptom: Error: Python version 3.x.x is not supported. OpenClaw requires Python 3.11 or higher.

Fix:

# Check your Python version
python3 --version

# Install Python 3.12 on Ubuntu
sudo apt install python3.12 python3.12-venv -y

# Use the correct Python to create your venv
python3.12 -m venv venv
source venv/bin/activate

Error: "No module named 'openclaw'"

Symptom: ModuleNotFoundError: No module named 'openclaw'

Cause: Running python -m openclaw outside the virtual environment.

Fix:

cd ~/openclaw
source venv/bin/activate  # Always activate the venv first
python -m openclaw start

Add source ~/openclaw/venv/bin/activate to your ~/.bashrc to activate automatically.

Error: "Dependency conflict" During pip install

Symptom: ERROR: pip's dependency resolver does not currently take into account all the packages...

Fix:

# Start with a fresh venv
deactivate
rm -rf venv
python3.12 -m venv venv
source venv/bin/activate

# Install with --no-cache-dir to avoid stale cached packages
pip install --no-cache-dir -r requirements.txt

Error: "Invalid API key" on First Run

Symptom: OpenClaw LLM Error: Invalid API key provided

Causes and fixes:

1. Trailing whitespace: The most common cause. Paste your key into a plain text editor first to strip formatting.
2. Wrong provider selected: Make sure the provider in your config matches the key format (Anthropic keys start with sk-ant-, OpenAI keys start with sk-proj-)
3. Key revoked: Check your provider's console — keys are sometimes revoked after security events
4. Incorrect config path: Verify ~/.openclaw/openclaw.json contains the correct key

Error: "Telegram bot not responding"

Symptom: Bot created successfully but doesn't respond to messages.

Checks:

1. Is OpenClaw running? (systemctl status openclaw or check process)
2. Does your Telegram token in config match what BotFather provided?
3. Have you sent /start to the bot first? (Required for initial handshake)
4. Is your user ID in allowed_users if that's configured?
5. Test token: curl https://api.telegram.org/bot<TOKEN>/getMe

Error: "Port 8080 already in use"

Fix:

# Find what's using port 8080
sudo lsof -i :8080

# Change OpenClaw's port
# In openclaw.json:
# "web_interface": { "port": 8081 }

Error: "SSL certificate verification failed"

Symptom: Errors connecting to LLM APIs from certain server environments.

Fix:

pip install certifi --upgrade
# Add to your shell environment:
export SSL_CERT_FILE=$(python -m certifi)

Frequently Asked Questions

Where can I get more help if these fixes don't work?

The OpenClaw community Discord (#installation-help channel) and Reddit (r/OpenClaw) are the best resources. Include your OS, Python version, and the complete error message.

Does nacre.sh eliminate these installation issues?

Yes — nacre.sh handles all installation and configuration. You never encounter dependency conflicts, Python version issues, or port configuration problems. The entire environment is managed for you.

How do I enable verbose logging to diagnose an issue?

In openclaw.json, set "logging": { "level": "debug" } and restart. Debug logs include all API calls, skill invocations, and channel events.