VSCode Language Server MCP Extension

# Troubleshooting Extension Not Loading The extension is installed but not activating in VSCode. Let's diagnose this step by step. ## Check Extension Installation ```bash # Verify extension is installed code --list-extensions | grep mcp # Should show: local.vscode-mcp-language-server # Check extension directory ls -la ~/.vscode/extensions/local.vscode-mcp-language-server-0.1.0/ # Should show: out/, node_modules/, package.json, README.md ``` ## Check for Errors in VSCode ### Step 1: Open Developer Tools 1. Open VSCode 2. Press `Ctrl+Shift+P` 3. Type: `Developer: Toggle Developer Tools` 4. Press Enter ### Step 2: Check Console for Errors In the Developer Tools window that opens: 1. Click the **Console** tab 2. Look for any red error messages mentioning "vscode-mcp" or "extension" 3. Take note of any error messages ### Step 3: Check Extension Host Output 1. In VSCode, go to View → Output 2. In the dropdown at the top-right of the Output panel, select **"Extension Host"** 3. Look for errors related to our extension ### Step 4: Check Running Extensions 1. Press `Ctrl+Shift+P` 2. Type: `Developer: Show Running Extensions` 3. Look for `vscode-mcp-language-server` in the list - If it's there: Check its status - If it's not there: Extension is not loading ## Common Issues ### Issue 1: Extension Not in Running Extensions List **Possible Causes:** - Activation event not triggering - Syntax error in extension code - Missing dependencies in node_modules **Solution:** Try loading it in development mode: ```bash cd ~/source/vscode-mcp-language-server code . ``` Then press `F5` to launch Extension Development Host. ### Issue 2: "Cannot find module 'ws'" **Solution:** Reinstall dependencies in the extension directory: ```bash cd ~/.vscode/extensions/local.vscode-mcp-language-server-0.1.0/ npm install ``` ### Issue 3: Port Already in Use **Check:** ```bash lsof -i :3100 ``` **Solution:** If port is in use, either: 1. Kill the process using it 2. Change port in settings: `vscodeMcpLs.port` ## Manual Activation Test Let's test if the extension can activate manually: 1. Open VSCode Developer Tools (Ctrl+Shift+I) 2. Go to Console tab 3. Run this command: ```javascript vscode.commands.executeCommand('vscodeMcpLs.showStatus') ``` If you get an error about command not found, the extension isn't registered. ## Alternative: Development Mode Try running in development mode to see detailed errors: ```bash cd ~/source/vscode-mcp-language-server code . ``` 1. Open `src/extension.ts` in the editor 2. Press `F5` (Start Debugging) 3. A new "Extension Development Host" window opens 4. Check the Debug Console in the original window for errors 5. In the new window, check if the extension loads ## Report Issues If the extension still doesn't load, please provide: 1. Output from "Developer Tools" Console tab 2. Output from "Extension Host" output channel 3. Output from "Developer: Show Running Extensions" 4. Any error messages you see