mt5-quant/docs/TROUBLESHOOTING.md

Troubleshooting

Run verify_setup first — it checks all paths and returns actionable hints.

Wine Not Found

macOS

Confirm /Applications/MetaTrader 5.app exists and has been launched at least once.

Check detection:

bash scripts/platform_detect.sh

If using CrossOver, confirm bottle is named MetaTrader5.

Linux

Install Wine 7.0+ and confirm on PATH:

# Debian/Ubuntu
sudo apt install wine64
# Fedora/RHEL
sudo dnf install wine
which wine64

Ask your LLM platform to install Wine if it's missing.

terminal64.exe Missing

MT5 unpacks terminal64.exe only after first launch.

1. Open MetaTrader 5.app
2. Wait for initialization (~30s)
3. Quit
4. Re-run setup:

bash scripts/setup.sh --yes

MCP Server Not Appearing

Claude Code

claude mcp list                # should show MT5-Quant
claude mcp remove MT5-Quant    # remove stale entry
claude mcp add MT5-Quant -- /absolute/path/to/mt5-quant

Must use absolute path — relative paths break when Claude starts from different directories.

Windsurf

1. Check logs: ~/.windsurf/logs/
2. Verify executable path is absolute
3. Test manually: ./mt5-quant --help

Config Not Found

Set MT5_MCP_HOME or ensure config exists at:

• macOS: ~/.config/mt5-quant/config/mt5-quant.yaml
• Project: config/mt5-quant.yaml

Report Not Found After Backtest

1. Wrong symbol name — brokers use custom names (XAUUSDm, XAUUSD.cent). Check verify_setup or look in <terminal_dir>/history/.

2. No history data — open MT5, open symbol chart, wait for history download.

3. EA crash at startup — check <terminal_dir>/MQL5/Logs/ for OnInit errors.

4. Date range has no trades — try wider range or confirm symbol was active.

Backtest Completes But Always Shows "journal-only" (No HTML Report)

Symptom: Every backtest produces status: completed_no_html and all deal profits are 0.0.

Cause: On Wine/macOS, ShutdownTerminal=1 does not cause terminal64.exe to exit after the test completes. The tester agent (MetaTester 5) closes normally, but the terminal process stays alive indefinitely. Without process exit, MT5 never writes the HTML report.

How the pipeline handles this: The inactivity watchdog detects that the tester log has stopped growing (test done), waits 30 seconds polling for the HTML file, then kills terminal64.exe unconditionally. If the HTML appears during the wait it is extracted; otherwise journal extraction provides deal counts and final balance (but no per-deal P&L).

To maximise HTML report chances: Pass inactivity_kill_secs=120 explicitly (it is disabled by default). With shutdown=true (default) this gives MT5 120s of quiet time + 30s of HTML-wait before the kill.

launch_backtest(expert: "MyEA", shutdown: true, inactivity_kill_secs: 120)

Fallback data available from journal:

• Deal count, volume, prices, timestamps ✓
• Final balance (pips) ✓
• Per-deal profit/loss ✗ (always 0.0)
• Win rate, profit factor, Sharpe, drawdown ✗ (require HTML)

list_deals Returns 0 Filtered Results

Analytics tools filter deals with is_closed_trade() which checks entry = "out". If all deals show entry = "in", the position tracker that infers direction from signed lot accumulation may not have run (old binary in memory).

Fix: Restart the MCP server (restart Claude Code / your IDE) after installing a new binary. The server process caches the binary in memory — install doesn't hot-reload it.

MetaEditor Compile Errors

Check <terminal_dir>/MQL5/Logs/:

• Missing #include — copy dependencies into Experts/ alongside .mq5
• Stale .ex5 — delete old binary and recompile

No Deals in Backtest Report

• Use model=0 (every tick) — models 1/2 skip intra-bar movement, producing zero deals for grid/martingale EAs
• Check .set file values appropriate for symbol/broker
• Confirm OnInit() returns INIT_SUCCEEDED (MT5 Journal tab)

Analytics Tools: "No reports in DB" or "Report not found"

Analytics tools load deals from the SQLite database, not from CSV files on disk. Resolution order:

1. report_id (preferred) — ID from list_reports
2. report_dir (legacy) — filesystem path, looks up matching DB entry
3. No args — uses the latest report automatically

Pre-DB reports (before this version) won't be found by report_dir. Re-run the backtest to get a DB-backed report.

deals.csv is no longer written automatically. Call export_deals_csv to generate one on demand:

export_deals_csv()                              # latest report → report_dir/deals.csv
export_deals_csv(report_id: "20260422_…")      # specific report
export_deals_csv(output_path: "/tmp/out.csv")  # custom path

Optimization Never Finishes

# From Claude:
tail_log(job_id=X, filter=errors)
get_optimization_status(job_id=X)

If MT5 crashed, edit <terminal_dir>/terminal.ini and remove line containing OptMode=-1, then retry.

Permission Denied

chmod +x /path/to/mt5-quant

Still Stuck?

1. Run verify_setup and share output
2. Check tail_log for errors
3. Review <terminal_dir>/MQL5/Logs/ for EA errors