Troubleshooting

This page covers common issues you might encounter when installing and using Vicoa, along with their solutions.

We have migrated from python to node.js for CLI installation. You can still use the old python installation method, below are troubleshooting tips.

Installation Issues

Command not found: pip

Problem: When running pip install vicoa && vicoa, you get the error:

zsh: command not found: pip

Solutions:

Option 1: Use python3 -m pip

python3 -m pip install vicoa && vicoa

Option 2: Install Python with pip

If you don't have pip installed, you need to install Python first:

On macOS:

# Using Homebrew
brew install python

# Using official installer
# Download from https://www.python.org/downloads/

On Ubuntu/Debian:

sudo apt update
sudo apt install python3 python3-pip

On Windows:

Download Python from python.org
Make sure to check "Add Python to PATH" during installation

Option 3: Use pip3 instead

pip3 install vicoa && vicoa

Python version compatibility error

Problem: When running pip install vicoa, you get this error:

ERROR: Ignored the following versions that require a different python version: 1.0.1 Requires-Python >=3.10; 1.0.2 Requires-Python >=3.10
ERROR: Could not find a version that satisfies the requirement vicoa (from versions: none)
ERROR: No matching distribution found for vicoa

This means your Python version is older than 3.10, which is required for Vicoa.

Solution: Check and upgrade your Python version:

Step 1: Check your current Python version

python --version
# or
python3 --version

Step 2: Upgrade Python

On macOS:

# Option 1: Using Homebrew (recommended)
brew install python@3.11

# Option 2: Using pyenv for version management
brew install pyenv
pyenv install 3.11.0
pyenv global 3.11.0

# Option 3: Download from python.org
# Visit https://www.python.org/downloads/macos/

On Ubuntu/Debian:

# Update package list
sudo apt update

# Install Python 3.11
sudo apt install python3.11 python3.11-pip

# Set as default (optional)
sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1

On CentOS/RHEL/Fedora:

# For Fedora
sudo dnf install python3.11 python3.11-pip

# For CentOS/RHEL (enable EPEL first)
sudo yum install epel-release
sudo yum install python311 python311-pip

On Windows:

Go to python.org/downloads
Download Python 3.11 or later
Run the installer and check "Add Python to PATH"
Restart your command prompt

Step 3: Verify installation and install Vicoa

# Check new Python version
python3.11 --version

# Install Vicoa with the new Python version
python3.11 -m pip install vicoa

# Run Vicoa
python3.11 -m vicoa
# or just
vicoa

Alternative: Use pyenv (recommended for developers)

# Install pyenv
curl https://pyenv.run | bash

# Add to your shell profile (~/.bashrc, ~/.zshrc)
echo 'export PATH="$HOME/.pyenv/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(pyenv init -)"' >> ~/.bashrc
source ~/.bashrc

# Install and use Python 3.11
pyenv install 3.11.0
pyenv global 3.11.0

# Now install Vicoa
pip install vicoa

Invalid requirement: '&&'

Problem: When running pip install vicoa && vicoa, you see:

ERROR: Invalid requirement: '&&'
Expected package name at the start of dependency specifier

This happens when your shell doesn't interpret && as a command separator and instead passes it to pip as part of the package list.

Solutions:

Option 1: Run the commands separately

pip install vicoa
vicoa

Option 2: Use a shell that supports `&&`

Run the original command from a POSIX-compatible shell like bash or zsh, or in newer PowerShell versions:

pip install vicoa && vicoa

If you are using the fish shell, use ; and instead:

pip install vicoa; and vicoa

ModuleNotFoundError: No module named 'maturin'

Problem: While running pip install vicoa, you see:

ModuleNotFoundError: No module named 'maturin'

This happens when pip cannot download the pre-built wheel and instead tries to compile Vicoa from source without the Rust build backend maturin. This scenario is common on minimal environments (for example A-Shell on iOS) but can occur on any system missing Rust tooling.

Solutions:

Option 1: Install maturin (works wherever you can install Python packages)

python3 -m pip install --upgrade pip
python3 -m pip install maturin
python3 -m pip install vicoa

Option 2: Ensure a wheel can be downloaded

On desktop Linux/macOS/Windows, upgrade packaging tools so pip prefers wheels:

python3 -m pip install --upgrade pip setuptools wheel
python3 -m pip install vicoa

On A-Shell or other lightweight shells, confirm internet access and retry the install after upgrading pip. If wheels are unavailable for your platform, fall back to option 3.

Option 3 (not recommended): Compile from source with Rust

Only try this if you understand the implications—building on constrained shells like A-Shell is slow, fragile, and easy to break. When possible, move to a desktop machine or another Python environment where wheels are available.

If you absolutely must proceed:

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
source "$HOME/.cargo/env"
python3 -m pip install maturin
python3 -m pip install vicoa

Again, prefer avoiding this route; most users are better off switching environments rather than compiling locally.

If the error persists even after these steps, consider switching to a desktop environment or opening a support ticket—fighting the source build usually costs more time than it saves.

EACCES: permission denied when installing with npm

Problem: When running npm i -g @vicoa/cli, you get a permission error:

npm ERR! code EACCES
npm ERR! syscall mkdir
npm ERR! path /usr/local/lib/node_modules
npm ERR! errno -13
npm ERR! Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules'

This happens because your user account doesn't have write access to the global node_modules directory.

Solutions:

Option 1: Use sudo (simplest)

sudo npm i -g @vicoa/cli

Option 2: Fix npm permissions (recommended for developers)

Configure npm to use a directory you own, so you don't need sudo for global installs:

mkdir -p ~/.npm-global
npm config set prefix '~/.npm-global'
echo 'export PATH="$HOME/.npm-global/bin:$PATH"' >> ~/.bashrc  # or ~/.zshrc
source ~/.bashrc  # or source ~/.zshrc
npm i -g @vicoa/cli

Option 3: Use a Node version manager

Tools like nvm or fnm install Node into your home directory, so global installs never need sudo:

# Example with nvm
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh | bash
source ~/.bashrc
nvm install --lts
npm i -g @vicoa/cli

ENOTEMPTY: directory not empty when upgrading with npm

Problem: When running sudo npm i -g @vicoa/cli@latest, you get:

npm ERR! code ENOTEMPTY
npm ERR! syscall rename
npm ERR! path /usr/local/lib/node_modules/@vicoa/cli
npm ERR! dest /usr/local/lib/node_modules/@vicoa/.cli-1nAlLTYd
npm ERR! errno -39
npm ERR! ENOTEMPTY: directory not empty, rename '/usr/local/lib/node_modules/@vicoa/cli' -> '/usr/local/lib/node_modules/@vicoa/.cli-1nAlLTYd'

npm cannot rename the existing directory during the upgrade because it is not empty.

Solution: Remove the existing installation and reinstall:

# Uninstall the current version
sudo npm uninstall -g @vicoa/cli

# Remove the leftover directory if it still exists
sudo rm -rf /usr/local/lib/node_modules/@vicoa/cli

# Reinstall the latest version
sudo npm i -g @vicoa/cli@latest

Connection Issues

Authorization problems

Problem: Web authorization fails or doesn't complete.

Solutions:

Clear browser cache: Clear cookies and cache for the Vicoa website
Try incognito/private mode: Use a private browser window
Disable browser extensions: Temporarily disable ad blockers and other extensions
Check popup blockers: Ensure popups are allowed for the Vicoa domain

You can also try re-authenticating with Vicoa:

Re-authenticate with Vicoa:

vicoa --reauth

Verify your API key:

cat ~/.vicoa/credentials.json

Failed to connect: backoff_max error

Problem: When trying to start a session with vicoa, you see:

Error: Failed to connect to Vicoa: Retry.__init__() got an unexpected keyword argument 'backoff_max'

This error occurs due to an incompatible version of the urllib3 library.

Solution: Upgrade urllib3 to version 2.0.0:

pip install urllib3==2.0.0

Then try running Vicoa again:

vicoa

Runtime Issues

Vicoa stops responding

Problem: The Vicoa CLI becomes unresponsive or freezes.

Solutions:

Restart Vicoa: Press Ctrl+C to stop, then run vicoa again
Check system resources: Ensure you have enough RAM and CPU available
Update Vicoa: Run npm i -g @vicoa/cli@latest

Connection lost: Response ended prematurely

Problem: When starting the Vicoa daemon, you see:

[WARNING] Connection lost: Response ended prematurely

Solution: Stop the process and restart it:

Press Ctrl+C to stop the daemon
Run the command again

Vicoa CLI hangs on startup

Problem: Running vicoa (or vicoa codex, vicoa opencode, etc.) hangs at launch — the terminal appears to freeze before the agent ever starts. You may have last seen the CLI working on a previous machine or before changing your Vicoa account.

This is usually caused by stale credentials in ~/.vicoa/credentials.json: the cached CLI key references an account or session that the backend no longer recognizes, so the startup sync calls never complete.

Solution: Re-authenticate the CLI to mint a fresh key.

vicoa --reauth

This opens your browser, signs you back in via Vicoa, and overwrites ~/.vicoa/credentials.json with a working key. Then run vicoa again as normal.

Permission request and options are not shown

Problem: When using Claude Code, permission requests and options are not displayed in the CLI.

This could be a version compatibility issue between Claude Code and Vicoa.

Solution: Check the version compatibility guide to ensure you're using compatible versions.

If you're using Claude Code 2.1.x, upgrade Vicoa to version 1.3.x or later:

npm i -g @vicoa/cli@latest

After upgrading, restart Vicoa:

vicoa

Mobile App Issues

Agent Sessions Not Syncing

Problem: The app doesn't show your sessions.

Solutions:

Force refresh: Pull down on the sessions list to refresh
Check account: Ensure you're logged into the same account
Restart app: Close and reopen the Vicoa app
Check CLI connection: Verify your CLI is still connected and try sending messages

Messages Not Syncing

If messages aren't appearing in the mobile app:

Check your internet connection
Go back to the home page and open the session again

Getting Help

If you're still experiencing issues:

Raise issues on GitHub: https://github.com/vicoa-ai/vicoa-open/issues
Contact support at hi@vicoa.ai
Include details: When reporting issues, include:
- Your operating system and version
- Python version (python --version)
- Vicoa version (vicoa --version)
- Full error messages
- Steps to reproduce the issue

Common Commands Reference

Here are the most commonly used commands for troubleshooting:

# Update to latest version
npm i -g @vicoa/cli@latest

# Check installed version
vicoa --version

# Uninstall
npm uninstall -g @vicoa/cli

For the optional pip-based installation path:

# Check Python version
python --version
python3 --version

# Check pip version
pip --version
pip3 --version

# Check Vicoa installation
pip show vicoa

# Upgrade Vicoa
pip install --upgrade vicoa

# Install with user permissions
pip install --user vicoa

# Install in virtual environment
python3 -m venv vicoa-env
source vicoa-env/bin/activate
pip install vicoa

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