> ## Documentation Index
> Fetch the complete documentation index at: https://docs.twenty.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Troubleshooting

> Common first-run issues — Docker, Node version, Yarn, dependencies.

* **Docker errors** — Make sure Docker Desktop (or the daemon) is running before `yarn twenty docker:start`. The error message will show the right start command for your OS.
* **Wrong Node version** — Need 24.5+ (`engines.node: ^24.5.0`). Check with `node -v`.
* **Yarn 4 missing** — Run `corepack enable`.
* **Dependencies broken** — `rm -rf node_modules && yarn install`.
* **`twenty-sdk` errors after upgrading to v2.8.0** — It moved from `dependencies` to `devDependencies` in v2.8.0. See [Project Structure → Dependencies](/developers/extend/apps/getting-started/project-structure#dependencies).
* **`twenty dev:build` warns about `twenty-client-sdk` under `dependencies`** — It is provided at runtime by Twenty, so it should be moved to `devDependencies` alongside `twenty-sdk`. See [Project Structure → Dependencies](/developers/extend/apps/getting-started/project-structure#dependencies).

Stuck? Ask on the [Twenty Discord](https://discord.com/channels/1130383047699738754/1130386664812982322).