Troubleshooting

Common issues and their resolution. Extracted from the original AGENTS.md and merged with relevant sections from AGENT_USAGE_GUIDE.md and BDD_GUIDE.md. Refer back to those guides for context-specific troubleshooting (agent workflows, BDD test failures).

Port Already in Use

# Find and kill process using port 8080
kill -TERM $(lsof -ti :8080)

# Force kill if graceful does not work
kill -9 $(lsof -ti :8080)

Server Not Responding

# Check if running
curl -s http://localhost:8080/api/health

# Restart server using control script
./scripts/start-server.sh restart

# View recent logs
./scripts/start-server.sh logs

If health endpoint returns connection refused, the server may have crashed. Check logs in ./scripts/start-server.sh logs for stack traces.

Dependency Issues

# Clean and rebuild
go mod tidy
go build ./...

# If dependency version conflicts persist
go mod download
go mod verify

Tests Failing

Unit tests

# Run with verbose output
go test -v ./...

# Check specific test
go test ./pkg/greet/ -run TestName

BDD tests

See BDD_GUIDE.md for the full BDD troubleshooting workflow (Godog setup, scenario isolation, step matching). Common BDD issues:

Step not found → check pkg/bdd/steps/ for the step definition file
Scenario state leaking → review ADR-0025 for the isolation pattern
Database not reset → ensure the test fixtures cleanup runs (BDD scenario After hooks)

Configuration Not Loading

The application logs the configuration source at startup. Check logs for:

[INF] Configuration loaded from: file:config.yaml
# or
[INF] Configuration loaded from: env
# or
[INF] Configuration loaded from: defaults

If config is not loading as expected:

Verify file exists and is readable: ls -la config.yaml
Verify env vars are exported: env | grep DLC_
Check for typos in keys (case-sensitive)
Review AGENT_USAGE_GUIDE.md section "Configuration troubleshooting"

OpenTelemetry Not Tracing

Verify Jaeger is running: docker ps | grep jaeger
Check DLC_TELEMETRY_ENABLED=true in environment or telemetry.enabled: true in config
Verify OTLP endpoint reachable: nc -zv localhost 4317
Check sampler is not always_off
See OBSERVABILITY.md for full setup

Build Failures

# Clear caches
go clean -cache -modcache
go mod download

# Rebuild
go build ./...

If errors persist, see local-ci-cd-testing.md for the CI/CD pipeline that mirrors the production build.

Where to Look Next

Agent-specific issues (vibe, mistral, programmer agent) → AGENT_USAGE_GUIDE.md
BDD-specific issues → BDD_GUIDE.md
Version/release issues → version-management-guide.md
CI/CD issues → local-ci-cd-testing.md

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