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Troubleshooting

Common issues and how to resolve them.

Installation Issues

"command not found: core"

Cause: Go's bin directory is not in your PATH.

Fix:

# Add to ~/.bashrc or ~/.zshrc
export PATH="$PATH:$(go env GOPATH)/bin"

# Then reload
source ~/.bashrc  # or ~/.zshrc

"go: module forge.lthn.ai/core/cli: no matching versions"

Cause: Go module proxy hasn't cached the latest version yet.

Fix:

# Bypass proxy
GOPROXY=direct go install forge.lthn.ai/core/cli/cmd/core@latest

Build Issues

"no Go files in..."

Cause: Core couldn't find a main package to build.

Fix:

  1. Check you're in the correct directory
  2. Ensure .core/build.yaml has the correct main path:
project:
  main: ./cmd/myapp  # Path to main package

"CGO_ENABLED=1 but no C compiler"

Cause: Build requires CGO but no C compiler is available.

Fix:

# Option 1: Disable CGO (if not needed)
core build  # Core disables CGO by default

# Option 2: Install a C compiler
# macOS
xcode-select --install

# Ubuntu/Debian
sudo apt install build-essential

# Windows
# Install MinGW or use WSL

Build succeeds but binary doesn't run

Cause: Built for wrong architecture.

Fix:

# Check what you built
file dist/myapp-*

# Build for your current platform
core build --targets $(go env GOOS)/$(go env GOARCH)

Release Issues

"dry-run mode, use --we-are-go-for-launch to publish"

This is expected behaviour. Core runs in dry-run mode by default for safety.

To actually publish:

core ci --we-are-go-for-launch

"failed to create release: 401 Unauthorized"

Cause: GitHub token missing or invalid.

Fix:

# Authenticate with GitHub CLI
gh auth login

# Or set token directly
export GITHUB_TOKEN=ghp_xxxxxxxxxxxx

"no artifacts found in dist/"

Cause: You need to build before releasing.

Fix:

# Build first
core build

# Then release
core ci --we-are-go-for-launch

"tag already exists"

Cause: Trying to release a version that's already been released.

Fix:

  1. Update version in your code/config
  2. Or delete the existing tag (if intentional):
git tag -d v1.0.0
git push origin :refs/tags/v1.0.0

Multi-Repo Issues

"repos.yaml not found"

Cause: Core can't find the package registry.

Fix:

Core looks for repos.yaml in:

  1. Current directory
  2. Parent directories (walking up to root)
  3. ~/Code/host-uk/repos.yaml
  4. ~/.config/core/repos.yaml

Either:

  • Run commands from a directory with repos.yaml
  • Use --registry /path/to/repos.yaml
  • Run core setup to bootstrap a new workspace

"failed to clone: Permission denied (publickey)"

Cause: SSH key not configured for GitHub.

Fix:

# Check SSH connection
ssh -T [email protected]

# If that fails, add your key
ssh-add ~/.ssh/id_ed25519

# Or configure SSH
# See: https://docs.github.com/en/authentication/connecting-to-github-with-ssh

"repository not found" during setup

Cause: You don't have access to the repository, or it doesn't exist.

Fix:

  1. Check you're authenticated: gh auth status
  2. Verify the repo exists and you have access
  3. For private repos, ensure your token has repo scope

GitHub Integration Issues

"gh: command not found"

Cause: GitHub CLI not installed.

Fix:

# macOS
brew install gh

# Ubuntu/Debian
sudo apt install gh

# Windows
winget install GitHub.cli

# Then authenticate
gh auth login

"core dev issues" shows nothing

Possible causes:

  1. No open issues exist
  2. Not authenticated with GitHub
  3. Not in a directory with repos.yaml

Fix:

# Check auth
gh auth status

# Check you're in a workspace
ls repos.yaml

# Show all issues including closed
core dev issues --all

PHP Issues

"frankenphp: command not found"

Cause: FrankenPHP not installed.

Fix:

# macOS
brew install frankenphp

# Or use Docker
core php dev --docker

"core php dev" exits immediately

Cause: Usually a port conflict or missing dependency.

Fix:

# Check if port 8000 is in use
lsof -i :8000

# Try a different port
core php dev --port 9000

# Check logs for errors
core php logs

Performance Issues

Commands are slow

Possible causes:

  1. Large number of repositories
  2. Network latency to GitHub
  3. Go module downloads

Fix:

# For multi-repo commands, use health for quick check
core dev health  # Fast summary

# Instead of
core dev work --status  # Full table (slower)

# Pre-download Go modules
go mod download

AI and Agentic Issues

"ANTHROPIC_API_KEY not set"

Cause: You're trying to use core ai or core dev commit (which uses Claude for messages) without an API key.

Fix:

export ANTHROPIC_API_KEY=sk-ant-xxxxxxxxxxxx

"failed to connect to Agentic API"

Cause: Network issues or incorrect AGENTIC_BASE_URL.

Fix:

  1. Check your internet connection
  2. If using a custom endpoint, verify AGENTIC_BASE_URL
  3. Ensure you are authenticated if required: export AGENTIC_TOKEN=xxxx

Getting More Help

Enable Verbose Output

Most commands support -v or --verbose:

core build -v
core go test -v

Check Environment

core doctor

This verifies all required tools are installed and configured.

Report Issues

If you've found a bug:

  1. Check existing issues: https://forge.lthn.ai/core/cli/issues
  2. Create a new issue with:
    • Core version (core --version)
    • OS and architecture (go env GOOS GOARCH)
    • Command that failed
    • Full error output

See Also