- 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+. Check with
node -v. - Yarn 4 missing — Run
corepack enable. - Dependencies broken —
rm -rf node_modules && yarn install. twenty-sdkerrors after upgrading to v2.8.0 — It moved fromdependenciestodevDependenciesin v2.8.0. See Project Structure → Dependencies.twenty buildwarns abouttwenty-client-sdkunderdependencies— It is provided at runtime by Twenty, so it should be moved todevDependenciesalongsidetwenty-sdk. See Project Structure → Dependencies.
Troubleshooting
Common first-run issues — Docker, Node version, Yarn, dependencies.