7d50fa1d4c
Add Prettier as a dev dependency with .prettierrc.json config and .prettierignore. Hook added via mirrors-prettier in pre-commit config. All TypeScript, JSON, Markdown, and YAML files auto-formatted. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
192 lines
4.9 KiB
Markdown
192 lines
4.9 KiB
Markdown
# Known Issues & Workarounds
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**Last Updated:** 2026-03-21
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**Version:** 2.2.3
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This document tracks known issues and provides workarounds where available.
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---
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## Current Issues
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### 1. `get_board_info` KiCAD 9.0 API Issue
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**Status:** KNOWN - Non-critical
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**Symptoms:**
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```
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AttributeError: 'BOARD' object has no attribute 'LT_USER'
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```
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**Root Cause:** KiCAD 9.0 changed layer enumeration constants
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**Workaround:** Use `get_project_info` instead for basic project details
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**Impact:** Low - informational command only
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---
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### 2. Zone Filling via SWIG Causes Segfault
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**Status:** KNOWN - Workaround available
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**Symptoms:**
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- Copper pours created but not filled automatically when using SWIG backend
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- Calling `ZONE_FILLER` via SWIG causes segfault
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**Workaround Options:**
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1. Use IPC backend (zones fill correctly via IPC)
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2. Open the board in KiCAD UI -- zones fill automatically when opened
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3. Use `refill_zones` tool (may still segfault in some configurations)
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**Impact:** Medium - affects copper pour visualization until opened in KiCAD
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---
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### 3. UI Manual Reload Required (SWIG Backend)
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**Status:** BY DESIGN
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**Symptoms:**
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- MCP makes changes via SWIG backend
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- KiCAD does not show changes until file is reloaded
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**Why:** SWIG-based backend modifies files directly and cannot push changes to a running UI
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**Fix:** Use IPC backend for real-time updates (requires KiCAD running with IPC enabled)
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**Workaround:** Click the reload prompt in KiCAD or use File > Revert
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---
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### 4. IPC Backend Limitations
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**Status:** EXPERIMENTAL
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**Known Limitations:**
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- KiCAD must be running with IPC enabled (Preferences > Plugins > Enable IPC API Server)
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- Some commands fall back to SWIG (e.g., delete_trace)
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- Footprint loading uses hybrid approach (SWIG for library, IPC for placement)
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**Workaround:** The server automatically falls back to SWIG backend when IPC is unavailable
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---
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### 5. package.json Version Mismatch
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**Status:** KNOWN - Non-critical
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**Symptoms:** package.json shows version 2.1.0-alpha while CHANGELOG documents version 2.2.3
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**Impact:** Cosmetic only. CHANGELOG.md is the authoritative version reference.
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---
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## Recently Fixed (v2.2.0 - v2.2.3)
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### B.Cu Footprint Routing (Fixed v2.2.3)
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- `route_pad_to_pad` now correctly detects B.Cu footprints and inserts vias
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- KiCAD 9 SWIG `pad.GetLayerName()` always returned F.Cu for flipped footprints -- fixed using `footprint.GetLayer()`
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### B.Cu Placement Hang (Fixed v2.2.3)
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- Placing footprints on B.Cu no longer causes ~30s freeze
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- Fix: call `board.Add()` before `Flip()`
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### Board Outline Rounded Corners (Fixed v2.2.3)
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- `add_board_outline` now correctly applies cornerRadius for rounded_rectangle shape
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### Project-Local Library Resolution (Fixed v2.2.2)
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- `add_schematic_component` and `place_component` now search project-local sym-lib-table and fp-lib-table
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- Previously only global KiCAD library paths were searched
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### Template File Corruption (Fixed v2.2.2)
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- Removed invalid `;;` comment lines from template schematics
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- Restored KiCAD 9 format version (20250114) in templates
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### copy_routing_pattern Empty Results (Fixed v2.2.2)
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- Added geometric fallback when pads have no net assignments
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### Schematic Component Corruption (Fixed v2.2.1)
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- `add_schematic_component` no longer corrupts .kicad_sch files
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- Rewritten to use text manipulation instead of sexpdata formatting
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### SWIG/UUID Comparison Bugs (Fixed v2.2.0)
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- Fixed SwigPyObject UUID comparison
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- Fixed SWIG iterator invalidation after board.Remove()
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- Added board.SetModified() to prevent dangling pointer crashes
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---
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## Reporting New Issues
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If you encounter an issue not listed here:
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1. **Check MCP logs:** `~/.kicad-mcp/logs/kicad_interface.log`
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2. **Enable developer mode:** Set `KICAD_MCP_DEV=1` to capture session logs
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3. **Check KiCAD version:** `python3 -c "import pcbnew; print(pcbnew.GetBuildVersion())"` (must be 9.0+)
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4. **Try the operation in KiCAD directly** -- is it a KiCAD issue?
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5. **Open a GitHub issue** with:
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- Error message and log excerpt
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- Steps to reproduce
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- KiCAD version and OS
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- MCP session log (from `logs/` folder if dev mode is enabled)
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---
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## General Workarounds
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### Server Will Not Start
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```bash
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# Check Python can import pcbnew
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python3 -c "import pcbnew; print(pcbnew.GetBuildVersion())"
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# Check paths
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python3 python/utils/platform_helper.py
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```
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### Commands Fail After Server Restart
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```
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# Board reference is lost on restart
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# Always run open_project after server restart
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```
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### KiCAD UI Does Not Show Changes (SWIG Mode)
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```
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# File > Revert (or click reload prompt)
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# Or: Close and reopen file in KiCAD
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# Or: Use IPC backend for automatic updates
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```
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### IPC Not Connecting
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```
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# Ensure KiCAD is running
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# Enable IPC: Preferences > Plugins > Enable IPC API Server
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# Have a board open in PCB editor
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# Check socket exists: ls /tmp/kicad/api.sock
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```
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---
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**Need Help?**
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- Check [IPC_BACKEND_STATUS.md](IPC_BACKEND_STATUS.md) for IPC details
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- Check logs: `~/.kicad-mcp/logs/kicad_interface.log`
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- Open an issue on GitHub
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