# Fix Hydration Error - Clear Build Cache

The hydration error you're seeing is caused by a cached build that has an old version of the Header component. The server is rendering a `<span>` element but the client expects a `<div>`.

## Solution: Clear Build Cache

Run these commands to clear the cache and rebuild:

```bash
# Navigate to project directory
cd /Users/ksaribardak/Documents/ante/betting_nextjs/betranked-pt

# Remove Next.js build cache
rm -rf .next

# Rebuild the application
npm run build

# Restart the development server (if running)
# Or restart your production server
```

## Alternative: Quick Development Fix

If you're in development mode:

```bash
# Stop the dev server (Ctrl+C)
# Remove .next directory
rm -rf .next

# Restart dev server
npm run dev
```

## Why This Happens

Next.js caches compiled components in the `.next` directory. When you update a component structure (like changing from `<span>` to `<div>`), the cached version might still be used, causing a mismatch between what the server renders and what the client expects.

## Prevention

After making structural changes to components:
1. Always clear the `.next` cache
2. Rebuild the application
3. Restart the server

This ensures the server and client are using the same component structure.

