# ERROR: Cannot install foo==1.0 and bar==2.0 because these package versions have conflicting dependencies.

The conflict is caused by:
    The user requested foo==1.0
    bar 2.0 depends on foo<1.0

- **ID:** `python/pip-resolution-impossible-conflicting-dependencies`
- **Domain:** python
- **Category:** install_error
- **Verification:** ai_generated
- **Fix Rate:** 80%

## Root Cause

The dependency resolver cannot find a set of versions satisfying all constraints simultaneously.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| 3.8 | active | — | — |
| 3.9 | active | — | — |
| 3.10 | active | — | — |
| 3.11 | active | — | — |
| 3.12 | active | — | — |

## Workarounds

1. **** (85% success)
   ```
   Relax version pins: `pip install foo bar` without exact versions, or use `pip install 'foo>=1.0' 'bar<2.0'`.
   ```
2. **** (80% success)
   ```
   Use a resolver like `pip-compile` from pip-tools to generate a consistent set.
   ```

## Dead Ends

- **** — Does not resolve version conflicts; pip still refuses. (90% fail)
- **** — Skips dependencies, leading to runtime ImportErrors later. (60% fail)