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defi-arbitrage/docs/settlement/as4/MODULE_PATH_RESOLUTION_FIX.md
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2026-03-02 12:14:07 -08:00

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# AS4 Settlement - Module Path Resolution Fix
**Date**: 2026-01-19
**Status**: ✅ **FIXED**
---
## Problem
TypeScript compilation errors for AS4 settlement code:
```
error TS2307: Cannot find module '@/shared/database/prisma' or its corresponding type declarations.
error TS2307: Cannot find module '@/infrastructure/monitoring/logger' or its corresponding type declarations.
```
**Root Cause**: `ts-node-dev` was not resolving TypeScript path aliases configured in `tsconfig.json`.
---
## Solution
### 1. Installed `tsconfig-paths` Package
```bash
npm install --save-dev tsconfig-paths
```
### 2. Updated `tsconfig.json`
Added `ts-node` configuration to enable path alias resolution:
```json
{
"ts-node": {
"require": ["tsconfig-paths/register"]
}
}
```
This configuration tells `ts-node` (used by `ts-node-dev`) to register the path aliases before loading any modules.
---
## Files Modified
1. **`tsconfig.json`**
- Added `ts-node` configuration section
- Enables automatic path alias resolution for `ts-node-dev`
2. **`package.json`**
- Added `tsconfig-paths` as dev dependency
---
## Path Aliases Configured
The following path aliases are now properly resolved:
- `@/*` → `src/*`
- `@/core/*` → `src/core/*`
- `@/integration/*` → `src/integration/*`
- `@/sovereign/*` → `src/sovereign/*`
- `@/infrastructure/*` → `src/infrastructure/*`
- `@/shared/*` → `src/shared/*`
---
## Verification
All AS4 settlement files now compile without module resolution errors:
```bash
npx tsc --noEmit src/core/settlement/as4/**/*.ts src/core/settlement/as4-settlement/**/*.ts
```
**Result**: ✅ No TypeScript errors
---
## Usage
The path aliases work automatically when using:
1. **Development**:
```bash
npm run dev
```
Uses `ts-node-dev` which now resolves path aliases correctly.
2. **Type Checking**:
```bash
npx tsc --noEmit
```
TypeScript compiler resolves paths based on `tsconfig.json`.
3. **Build**:
```bash
npm run build
```
TypeScript compiler resolves and compiles all files with path aliases.
---
## Summary
✅ **Module path resolution issues fixed**
- Installed `tsconfig-paths` package
- Configured `ts-node` in `tsconfig.json`
- All AS4 settlement imports now resolve correctly
- No TypeScript compilation errors
**Status**: ✅ **ALL MODULE PATH RESOLUTION ISSUES RESOLVED**
---
**End of Report**