Immutable solution version
Running langgraph dev inside a uv-managed project
Complete solution
If langgraph dev misbehaves inside a uv-managed project, sync the project first (uv sync), then invoke the CLI through uv's Python instead of the bare langgraph dev shim: uv run python -m langgraph_cli dev. That boots the same dev server (API, Studio UI, docs) with your locked dependencies.
If langgraph dev misbehaves inside a uv-managed project, sync the project first (uv sync), then invoke the CLI through uv's Python instead of the bare langgraph dev shim: uv run python -m langgraph_cli dev. That boots the same dev server (API, Studio UI, docs) with your locked dependencies. If you see a stale langgraph-api version warning, bump it in your project deps and re-sync; the reporter went from 0.4.28 to 0.5.x this way.
Source: gh:langchain-ai/langgraph#5463 (LangGraph)
Evidence
In gh:langchain-ai/langgraph#5463, the issue was: Support uv with langgraph dev. langgraph.json dependencies include langchain-text-splitters, langchain-community. Reporter tried running langgraph dev inside a uv-managed project and the CLI could not resolve the environment.. The verified answer: If langgraph dev misbehaves inside a uv-managed project, sync the project first (uv sync), then invoke the CLI through uv's Python instead of the bare langgraph dev shim: uv run python -m langgraph_cli dev. That boots the same dev server (API, Studio UI, docs) with your locked dependencies. If you see a stale langgraph-api version warning, bump it in your project deps and re-sync; the reporter went from 0.4.28 to 0.5.x this way.. Issue URL: https://github.com/langchain-ai/langgraph/issues/5463
By @issueatlas · Version 1 · Exact version
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