VS Code Extension Conflicts Troubleshooting

// Open Developer Tools
Help → Toggle Developer Tools
Ctrl+Shift+I (Windows/Linux)
Cmd+Option+I (macOS)

// Check extension status
Ctrl+Shift+P → "Extensions: Show Running Extensions"
Ctrl+Shift+P → "Developer: Show Running Extensions"

// Reload window
Ctrl+Shift+P → "Developer: Reload Window"

// Check extension performance
Ctrl+Shift+P → "Extensions: Show Running Extensions"
Look for:
- High CPU usage
- Memory consumption
- Slow activation times
- Error messages

// Monitor startup performance
Ctrl+Shift+P → "Developer: Show Running Extensions"
Check activation times and startup impact

// Common language server conflicts
- Multiple TypeScript extensions
- Conflicting Python language servers
- Overlapping JavaScript/TypeScript support
- Competing HTML/CSS extensions

// Resolution steps
1. Disable duplicate language servers
2. Keep only one active per language
3. Check extension dependencies
4. Restart VS Code after changes

// Common formatter conflicts
- Multiple Prettier extensions
- Conflicting ESLint configurations
- Overlapping code style rules
- Competing auto-formatting tools

// Resolution
{
  "editor.defaultFormatter": "esbenp.prettier-vscode",
  "editor.formatOnSave": true,
  "editor.codeActionsOnSave": {
    "source.fixAll.eslint": true
  }
}

// Common UI conflicts
- Multiple icon themes
- Conflicting color themes
- Overlapping UI customizations
- Competing status bar extensions

// Resolution steps
1. Use only one theme at a time
2. Disable conflicting UI extensions
3. Check theme compatibility
4. Reset UI customizations if needed

// Disable all extensions
Ctrl+Shift+P → "Extensions: Disable All Extensions"
Restart VS Code
Test if problem persists

// If problem is gone, enable extensions one by one
Ctrl+Shift+X → Enable extensions individually
Test after each enable
Identify the conflicting extension

// Efficient conflict detection
1. Disable half of your extensions
2. Test if problem persists
3. If problem persists, disable half of remaining
4. If problem is gone, enable half of disabled
5. Repeat until you find the conflicting extension

// Use extension profiles
Ctrl+Shift+P → "Extensions: Create Profile"
Create different profiles for different projects

// Check extension dependencies
Ctrl+Shift+X → Select extension → View details
Look for:
- Required extensions
- Conflicting extensions
- Version compatibility
- Extension status (enabled/disabled)

// Common dependency issues
- Missing required extensions
- Version mismatches
- Circular dependencies
- Conflicting requirements

{
  // Extension performance
  "extensions.autoUpdate": false,
  "extensions.autoCheckUpdates": false,
  "extensions.ignoreRecommendations": false,
  
  // Language server performance
  "typescript.disableAutomaticTypeAcquisition": false,
  "typescript.suggest.autoImports": true,
  "typescript.preferences.includePackageJsonAutoImports": "auto",
  
  // General performance
  "files.watcherExclude": {
    "**/node_modules/**": true,
    "**/dist/**": true
  }
}

// Create extension profiles
Ctrl+Shift+P → "Extensions: Create Profile"

// Profile examples
- "Web Development" - HTML, CSS, JS extensions
- "Python Development" - Python-specific extensions
- "Minimal" - Only essential extensions
- "Full Stack" - All development extensions

// Switch between profiles
Ctrl+Shift+P → "Extensions: Switch Profile"

// Common conflicts
- Multiple TypeScript extensions
- Conflicting IntelliSense providers
- Overlapping error checking
- Competing refactoring tools

// Resolution
{
  "typescript.preferences.includePackageJsonAutoImports": "auto",
  "typescript.suggest.autoImports": true,
  "typescript.disableAutomaticTypeAcquisition": false,
  "javascript.suggest.autoImports": true
}

// Common Python conflicts
- Multiple Python interpreters
- Conflicting linters (pylint, flake8, mypy)
- Overlapping formatters (black, autopep8)
- Competing debuggers

// Resolution
{
  "python.defaultInterpreterPath": "./venv/bin/python",
  "python.linting.enabled": true,
  "python.linting.pylintEnabled": true,
  "python.linting.flake8Enabled": false,
  "python.formatting.provider": "black"
}

// Choose extensions wisely
- Official Microsoft extensions
- High download counts
- Recent updates
- Good reviews and ratings
- Clear documentation

- Duplicate functionality
- Outdated extensions
- Poor reviews
- No recent updates
- Unclear purpose

// Check extension logs
Help → Toggle Developer Tools → Console
Look for extension errors

// Extension output
View → Output → Select extension from dropdown
Check for error messages

// Extension host logs
Ctrl+Shift+P → "Developer: Show Running Extensions"
Check for failed extensions

// Reset extension settings
Ctrl+Shift+P → "Preferences: Open Settings (JSON)"
Remove extension-specific settings

// Reset workspace settings
Delete .vscode/settings.json
Restart VS Code

// Reset user settings
Ctrl+Shift+P → "Preferences: Open User Settings (JSON)"
Backup and reset settings