BUG: Windows Dependency Resolution Failure for lancedb>=0.30.x on Python 3.11 via uv

[krrish612]

Bug description
Running crewai run on Windows AMD64 with Python 3.11 fails dependency resolution as lancedb==0.30.1 doesn't provide compatible Windows wheels.

The problem occurs in the uv environment resolution and stops CrewAI workflows from starting.

Error:

error: Distribution lancedb==0.30.1 @ registry+ can't install https://pypi.org/simple because it doesn't have a source distribution or wheel for the current platform

Environment:

OS: Windows AMD64 64 bit
Python: 3.11
Package Manager: uvu

Workaround today:

[tool.uuv]
overrideDependencies = {
lancedb==0.17.0
]

But it is not fully reliable, because downstream dependencies may still resolve incompatible versions of lancedb indirectly.

Possible root cause:

lancedb>=0.30.x has no wheels for Windows AMD64
uv enforces strict platform-aware dependency resolution
transitive dependencies (e.g. the vector-store stack) can override pinned versions

Proposed fix:

[tool.uuv]
environments-required = [
"sys_platform == 'win32' and platform_machine == 'x86_64'"
]

overrideDependencies = {
lancedb==0.17.0
]

Furthermore,

chromadb==0.5.23

may need to be pinned to avoid lancedb being upgraded indirectly.

Repro steps:

Use Windows AMD64 with Python 3.11.

install dependencies uv-sync

Run: 2.
crew run.
Watch dependency resolution failure

Expected behavior:

CrewAI dependencies should resolve appropriately on supported Windows environments
environment setup should not fail on incompatible platform wheels

Actual conduct:

uv is unable to solve the environment because there are no compatible lancedb binaries for Windows

Proposed tags:

bug
window
dependency resolution
uv
python
moderate
gssoc'