Félix Malfait
e50adaff2d
## Summary The current Docker-not-running message is unhelpful in two ways: 1. It doesn't tell users **how** to start Docker 2. "try again" is meaningless because a first-time user doesn't yet know the command they just ran (they got here from `create-twenty-app`, not from typing `yarn twenty server start` themselves) **Before:** ``` Docker is not running. Please start Docker and try again. ``` **After (macOS example):** ``` Docker is not running. Start Docker: Run: open -a Docker (or launch Docker Desktop from Applications) Then retry: yarn twenty server start Don't have Docker? Install from https://docs.docker.com/get-docker/ ``` The platform-specific line is detected via `process.platform`: - `darwin` → `open -a Docker` + Docker Desktop fallback - `linux` → `sudo systemctl start docker` + Docker Desktop fallback - `win32` → "Launch Docker Desktop from the Start menu" - other → link to install docs The retry command is computed at the call site so it preserves the user's actual flags — `yarn twenty server start --test`, `yarn twenty server upgrade 2.2.0 --test`, etc. ## Why This came out of shadowing a first-time app developer who hit this error during `npx create-twenty-app`. They were stuck — the CLI told them to "try again" but they had only learned two commands so far (`create-twenty-app` and `yarn dev`), neither of which was the right one. Improving the message turns the error into a teaching moment. ## Test plan - [x] `npx nx typecheck twenty-sdk` passes - [x] `npx nx lint twenty-sdk` passes - [x] Manually verified rendered output for both `server start` and `server upgrade` flows on macOS - [ ] Verify message renders correctly on Linux/Windows in practice ## Possible follow-ups (out of scope) - Auto-launch Docker Desktop on macOS if installed (changes user state — separate PR) - Make the multi-line CLI error printer style only the first line in red, so guidance reads as default text rather than red Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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Why Twenty
Twenty gives technical teams the building blocks for a custom CRM that meets complex business needs and quickly adapts as the business evolves. Twenty is the CRM you build, ship, and version like the rest of your stack.
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Installation
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The fastest way to get started. Sign up at twenty.com and spin up a workspace in under a minute, with no infrastructure to manage and always up to date.
Build an app
Scaffold a new app with the Twenty CLI:
npx create-twenty-app my-app
Define objects, fields, and views as code:
import { defineObject, FieldType } from 'twenty-sdk/define';
export default defineObject({
nameSingular: 'deal',
namePlural: 'deals',
labelSingular: 'Deal',
labelPlural: 'Deals',
fields: [
{ name: 'name', label: 'Name', type: FieldType.TEXT },
{ name: 'amount', label: 'Amount', type: FieldType.CURRENCY },
{ name: 'closeDate', label: 'Close Date', type: FieldType.DATE_TIME },
],
});
Then ship it to your workspace:
npx twenty deploy
See the app development guide for objects, views, agents, and logic functions.
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Twenty gives you the building blocks of a modern CRM (objects, views, workflows, and agents) and lets you extend them as code. Here's a tour of what's in the box.
Want to go deeper? Read the 
User Guide for product walkthroughs, or the Documentation for developer reference.
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