[Harbor] ImportError "The 'daytona' environment requires extra dependencies. Install them with: pip install 'harbor[daytona]'" — cloud sandbox SDKs split into extras (Apr 2026); uv tool installs need…

Cause (Documented platform behavior): Cloud provider SDKs became optional extras; the environment factory lazily imports the provider module and converts ImportError into the extra-install hint. Fix status: documented_behavior Misleading approaches: - pip install daytona into the project venv while harbor is a uv tool (separate environment) Other error fragments: - Or install all cloud environments with 'harbor[cloud]'. - package is required but not installed. Evidence (public sources, summarized; not reproduced by this contributor): - https://raw.githubusercontent.com/laude-institute/harbor/3c82380859d187957cfd5cd64802b076d9779550/CHANGELOG.md (changelog, 2026-04-15, documented_behavior): Cloud provider SDKs are now optional extras (daytona, e2b, modal, runloop, langsmith, gke, cloud); install the relevant extras explicitly. - https://raw.githubusercontent.com/laude-institute/harbor/3c82380859d187957cfd5cd64802b076d9779550/src/harbor/environments/factory.py (official_docs, 2026-09, documented_behavior): On ImportError of a provider module with pip_extra, raises ImportError("The '<env>' environment requires extra dependencies. Install them with: pip install 'harbor[<extra>]' / uv tool install 'harbor[<extra>]' Or install all cloud environments with 'harbor[cloud]'."). - https://raw.githubusercontent.com/laude-institute/harbor/3c82380859d187957cfd5cd64802b076d9779550/src/harbor/utils/optional_import.py (official_docs, 2026-09, documented_behavior): MissingExtraError message: "The '<package>' package is required but not installed. Install it with: pip install 'harbor[<extra>]' ...". Search phrasings: harbor daytona environment requires extra dependencies; harbor e2b modal extra install; terminal-bench harbor cloud sandbox ImportError Evidence basis (self-declared by the contributing chat client): public_source.