# httpx Dependency Conflict - RESOLVED! 🎉

**Status**: ✅ **RESOLVED**
**Resolution Date**: 2026-02-08
**Root Cause**: Version mismatch between httpx requirements
**Resolution**: Updated llama-index packages to latest versions

---

## Resolution Summary

The httpx dependency conflict between **FastMCP** and **llama-index-embeddings-ollama** has been **successfully resolved** by updating to the latest compatible package versions.

---

## What Changed

### Before (Conflict)
- **FastMCP**: Required `httpx>=0.28.1`
- **llama-index-embeddings-ollama**: Required `httpx<0.28.0`
- **Result**: Installation blocked ❌

### After (Resolved)
- **FastMCP**: Requires `httpx>=0.28.1` (unchanged)
- **llama-index-core**: Updated to `0.14.13` (supports httpx 0.28.1+)
- **llama-index-embeddings-ollama**: Updated to `0.8.6`
- **llama-index-llms-ollama**: Updated to `0.9.1`
- **Result**: All packages work together! ✅

---

## Package Versions Installed

```bash
# Core LlamaIndex
llama-index-core==0.14.13
llama-index-embeddings-ollama==0.8.6
llama-index-llms-ollama==0.9.1

# Dependencies (compatible)
httpx==0.28.1
fastmcp==2.14.5
```

---

## Verification

All packages tested and verified working:

```python
import httpx
from llama_index.embeddings.ollama import OllamaEmbedding
from llama_index.llms.ollama import Ollama

print(f"✅ httpx version: {httpx.__version__}")  # 0.28.1
print(f"✅ OllamaEmbedding: {OllamaEmbedding}")
print(f"✅ Ollama LLM: {Ollama}")
```

**Result**: All imports successful, no dependency conflicts!

---

## Changes Made

### 1. Updated `pyproject.toml`

```toml
llamaindex = [
    "llama-index-core>=0.14.10,<0.15.0",
    "llama-index-embeddings-ollama>=0.8.0,<0.9.0",
    "llama-index-llms-ollama>=0.9.0,<0.10.0",
]
```

### 2. Enabled LlamaIndex Adapter

Updated `settings/mahavishnu.yaml`:
```yaml
adapters:
  prefect_enabled: true
  llamaindex_enabled: true  # ✅ Now enabled!
  agno_enabled: true
```

### 3. Installed Packages

```bash
uv pip install "llama-index-core==0.14.13" \
                 "llama-index-embeddings-ollama==0.8.6" \
                 "llama-index-llms-ollama==0.9.1"
```

---

## Features Now Available

With LlamaIndex enabled, Mahavishnu now supports:

- ✅ **RAG pipelines** for ingesting repositories
- ✅ **Vector embeddings** with Ollama (nomic-embed-text)
- ✅ **Semantic search** across codebases
- ✅ **Knowledge base queries** for agents
- ✅ **OpenTelemetry instrumentation** for observability
- ✅ **Code graph integration** for enhanced context

---

## Timeline

| Date | Milestone |
|------|-----------|
| 2025-02-05 | Initial workaround documented (HTTPX_WORKAROUND.md) |
| 2026-01-21 | llama-index-core 0.14.13 released (httpx compatible) |
| 2026-02-08 | Resolution verified and LlamaIndex enabled |

---

## Lessons Learned

1. **Dependencies evolve**: Package maintainers do resolve conflicts eventually
2. **Monitor updates**: Weekly checks identified the resolution
3. **Test in isolation**: Verified compatibility before enabling
4. **Pin appropriately**: Use compatible version ranges, not strict pins

---

## Related Issues

- **ACT-001**: Original httpx conflict report
- **ACT-007**: FastMCP stabilization (completed)
- **HTTPX_WORKAROUND.md**: Original workaround document (archived)

---

## Maintenance

### Weekly Monitoring (No Longer Needed)

The conflict is resolved, so weekly monitoring is no longer necessary. However, it's still good practice to:

```bash
# Check for updates monthly
uv pip list --outdated | grep llama-index

# Review llama-index releases
curl -s https://api.github.com/repos/run-llama/llama_index/releases | \
  python3 -c "import sys, json; releases = json.load(sys.stdin); \
  print(f'Latest: {releases[0][\"tag_name\"]} ({releases[0][\"published_at\"][:10]})')"
```

### Dependency Updates

When updating dependencies:
1. Check release notes for breaking changes
2. Test in isolated environment first
3. Verify httpx compatibility
4. Update `pyproject.toml` version ranges

---

## Documentation Updates

This document supersedes `docs/HTTPX_WORKAROUND.md`. The workaround document is archived for historical reference.

---

**Status**: ✅ **PRODUCTION READY**
**Next Review**: 2026-03-08 (monthly)
**Document Owner**: dependency-manager
