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Common Issues

This guide covers common problems you might encounter while using Forge and their solutions.

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Installation Issues

Always ensure you’re running the latest version of Forge. Run forge --version to check your current version.

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Installation Script Fails

If the installation script fails: 
curl -fsSL https://forgecode.dev/cli | sh
Solutions:
  1. Check your internet connection
  2. Ensure you have the necessary permissions (try with sudo if needed)
  3. Verify your system meets the requirements
  4. Try building from source:
git clone https://github.com/antinomyhq/forge
cd forge
cargo build --release

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npm Installation Issues

For users installing via npm: 
# Try clearing npm cache
npm cache clean --force

# Reinstall globally
npm install -g forgecode

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Provider Configuration Issues

Environment variable-based provider configuration is deprecated. Use forge provider login instead.

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Provider Login Fails

If forge provider login fails:
  1. Check API key validity: Ensure your API key is correct and active
  2. Network issues: Verify you can reach the provider’s API endpoint
  3. Run with verbose logging:
forge --verbose provider login

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Migration from Environment Variables

If you’re experiencing issues after migrating from .env files:
  1. Remove old environment variables from your .env file
  2. Run forge provider login to set up credentials properly
  3. Restart your terminal session

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Model Selection Issues

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Model Not Found

Error: Model 'xyz' not found
Solution: Use the /model command in the Forge CLI to see available models: 
forge
> /model
Or use the new model switching command: 
forge --model claude-3.7-sonnet --provider anthropic

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GitHub Copilot Disabled Model Error

If you see an error about GitHub Copilot models being disabled, ensure you’re using a supported model for your provider.

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Runtime Issues

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Session Hangs or Times Out

Tool operations timeout after 300 seconds by default. You can adjust this with FORGE_TOOL_TIMEOUT.
If Forge hangs during operation:
  1. Check if a tool is taking too long (default timeout: 300s)
  2. Adjust timeout if needed:
export FORGE_TOOL_TIMEOUT=600  # 10 minutes
  1. Run with verbose logging to identify the issue:
forge --verbose

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Maximum Requests Per Turn Reached

If you see “Maximum requests per turn reached”:
  1. This is a safety limit (default: 50 requests)
  2. You’ll be prompted to continue or stop
  3. Adjust the limit in forge.yaml:
max_requests_per_turn: 100

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Tool Failures

If tools repeatedly fail:
  1. Check the error message for specific details
  2. Verify file permissions for file operations
  3. Ensure required dependencies are installed
  4. Adjust failure limit in forge.yaml:
max_tool_failure_per_turn: 5

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File Operation Issues

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Permission Denied Errors

Error: Permission denied
Solutions:
  1. Check file/directory permissions
  2. Ensure you have write access to the target directory
  3. For restricted environments, use restricted shell mode:
forge --restricted

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File Size Limits

Forge has default limits for file operations:
  • Image files: 256 KB (configurable with FORGE_MAX_IMAGE_SIZE)
  • Search results: 10 KB (configurable with FORGE_MAX_SEARCH_RESULT_BYTES)
  • Line length: 2000 characters (configurable with FORGE_MAX_LINE_LENGTH)
Adjust these in your environment: 
export FORGE_MAX_IMAGE_SIZE=524288  # 512 KB
export FORGE_MAX_LINE_LENGTH=4000

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HTTP and Network Issues

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Connection Timeouts

The default read timeout is 900 seconds (15 minutes). Connection timeout is 30 seconds.
Adjust HTTP timeouts: 
# .env
FORGE_HTTP_CONNECT_TIMEOUT=60
FORGE_HTTP_READ_TIMEOUT=1800

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SSL/TLS Certificate Issues

If you encounter certificate validation errors:
  1. Add custom root certificates:
export FORGE_HTTP_ROOT_CERT_PATHS=/path/to/cert1.pem,/path/to/cert2.crt
  1. Disable certificate validation (development only):
Setting FORGE_HTTP_ACCEPT_INVALID_CERTS=true disables SSL/TLS verification and can expose you to security risks. Only use in trusted development environments.
export FORGE_HTTP_ACCEPT_INVALID_CERTS=true

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Retry Configuration

If you’re experiencing frequent transient errors: 
# .env
FORGE_RETRY_INITIAL_BACKOFF_MS=2000
FORGE_RETRY_BACKOFF_FACTOR=2
FORGE_RETRY_MAX_ATTEMPTS=5
FORGE_RETRY_STATUS_CODES=429,500,502,503,504

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MCP (Model Context Protocol) Issues

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MCP Server Connection Fails

If your MCP server won’t connect:
  1. Verify server configuration:
forge mcp list
forge mcp get <server-name>
  1. Check server logs: Run the MCP server command manually to see error messages
  2. Validate JSON configuration: Ensure .mcp.json is properly formatted
  3. Check environment variables: MCP servers may need specific environment variables

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MCP Tools Not Available

If MCP tools don’t appear in Forge:
  1. Restart Forge after adding MCP servers
  2. Verify the server is running correctly
  3. Check server output for errors

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Git Operations Issues

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Git Operations Fail

If git commands fail within Forge:
  1. Ensure git is installed and in your PATH
  2. Verify you have proper git credentials configured
  3. Check repository permissions
  4. For GitHub operations, ensure gh CLI is installed and authenticated

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Shell Integration Issues

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ZSH Plugin Not Working

If the ZSH plugin isn’t functioning:
  1. Verify installation: Check that the plugin is loaded in your .zshrc
  2. Reload shell: Run source ~/.zshrc
  3. Check FORGE_BIN: Ensure it points to the correct forge executable:
export FORGE_BIN=forge
  1. Run doctor command:
forge doctor

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Theme Issues

If the ZSH theme doesn’t display correctly:
  1. Check Nerd Font support:
export NERD_FONT=1
# or
export USE_NERD_FONT=1
  1. Customize currency display:
export FORGE_CURRENCY_SYMBOL="€"
export FORGE_CURRENCY_CONVERSION_RATE=0.92

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Performance Issues

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Slow Search Operations

If semantic search is slow:
  1. Adjust search limits:
export FORGE_SEM_SEARCH_LIMIT=100
export FORGE_SEM_SEARCH_TOP_K=10
  1. Limit directory traversal depth in forge.yaml:
max_walker_depth: 3

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High Memory Usage

If Forge consumes too much memory:
  1. Reduce conversation history
  2. Limit max conversations:
export FORGE_MAX_CONVERSATIONS=50
  1. Reduce search result limits

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Logging and Debugging

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Enable Debug Logging

For detailed debugging information: 
export FORGE_LOG=forge=debug
forge --verbose

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Debug HTTP Requests

To debug API communication: 
export FORGE_DEBUG_REQUESTS=/tmp/forge-debug.json

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Suppress Retry Errors

If retry error messages are cluttering output: 
export FORGE_SUPPRESS_RETRY_ERRORS=true

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Getting Help

If you’re still experiencing issues:
  1. Check existing issues: Visit GitHub Issues to see if your problem has been reported
  2. Join Discord: Get community support on Discord
  3. Report a bug: Submit a bug report with:
    • Forge version (forge --version)
    • Operating system and version
    • Steps to reproduce
    • Error logs with --verbose flag
    • Your forge.yaml configuration (remove sensitive data)

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