# defineChain Import Fix - SyntaxError Resolved ✅

**Issue**: `The requested module '/node_modules/.vite/deps/wagmi_chains.js?v=5f0a1fce' does not provide an export named 'defineChain'`

**Root Cause**: In wagmi v2, `defineChain` is not exported from `wagmi/chains`. It should be imported from `viem` instead.

**Solution**: Changed import from `wagmi/chains` to `viem`

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## ✅ Fix Applied

### Updated `src/config/wagmi.ts`

**Before**:
```typescript
import { mainnet, defineChain } from 'wagmi/chains'
```

**After**:
```typescript
import { mainnet } from 'wagmi/chains'
import { defineChain } from 'viem'
```

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## 🔄 What Changed

1. **Removed** `defineChain` from `wagmi/chains` import
2. **Added** `defineChain` import from `viem`
3. **Chain definition** remains the same (no changes needed)

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## 📝 Technical Details

### Wagmi v2 Architecture
- Wagmi v2 is built on top of viem
- Chain definitions use viem's `defineChain` function
- `wagmi/chains` only exports predefined chains (mainnet, polygon, etc.)
- Custom chains must use `viem`'s `defineChain`

### Why This Works
- `viem` is already a dependency (used by wagmi)
- `defineChain` from viem is the correct function for custom chains
- Compatible with wagmi v2's chain type system

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## 🚀 Server Status

- ✅ Import fixed
- ✅ Cache cleared
- ✅ Server restarted
- ✅ Chain 138 definition working

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## ✅ Expected Result

After this fix:
- ✅ No more "does not provide an export named 'defineChain'" errors
- ✅ Chain 138 properly defined
- ✅ Wagmi config works correctly
- ✅ Application loads successfully

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**✅ defineChain Import Fixed - Ready to Use!**