7 Lovable Prompt Mistakes That Are Killing Your Apps

Most Lovable users are making the same mistakes. These seven errors are responsible for the majority of poor results — and every single one is fixable.

Mistake #1: Not Specifying Your Tech Stack

Lovable defaults to React + TypeScript + Tailwind, but not specifying this leaves room for ambiguity. Always start your prompt with: "Build using React, TypeScript, and Tailwind CSS."

Bad: "Create a dashboard for my startup" Good: "Build a React + TypeScript + Tailwind CSS dashboard for my startup"

Mistake #2: Forgetting Authentication

If your app has users, you need to specify authentication. Not mentioning it leads to apps that either have no auth at all or have auth that doesn't match your backend setup.

Bad: "Build a task management app with user profiles" Good: "Build a task management app. Authentication via email/password through Base44. Users have personal workspaces."

Mistake #3: No Data Model

This is the biggest mistake. If you don't tell Lovable what data entities your app needs, it generates a schema that often doesn't match your actual requirements.

Bad: "Build a CRM" Good: "Build a CRM with these entities: Contacts (name, email, company, phone, status), Deals (contact_id, title, value, stage, close_date), Activities (contact_id, deal_id, type, notes, date)"

Mistake #4: Vague UI Instructions

"Make it look nice" is not a useful instruction. Lovable needs to know your design language.

Bad: "Modern design" Good: "Clean, minimal SaaS dashboard. White background, subtle gray borders, blue primary color. Left sidebar navigation. Cards with soft shadows. No heavy gradients."

Mistake #5: Ignoring Integrations

If your app needs payments, email, file uploads, maps, or third-party APIs — you MUST mention them. Lovable can handle all of these, but only if you ask.

Bad: "Build an e-commerce store" Good: "Build an e-commerce store with Stripe for payments, Resend for email confirmations, and image upload for product photos"

Mistake #6: Not Specifying All Pages

Lovable builds what you describe. If you want a settings page, an onboarding flow, or an admin panel — list them explicitly.

Bad: "Build a SaaS app" Good: "Pages: Landing page, Pricing, Dashboard, Projects list, Project detail, Settings (account, billing, team), Admin panel for user management"

Mistake #7: Wrong Infrastructure Setup

The most expensive mistake. Many Lovable users start building without deciding on their backend setup, then spend hours debugging Supabase connections and RLS policies.

The fix: decide upfront. If you want fast, easy setup, use Base44. If you need full database control, use Supabase and specify your schema in your prompt.

Use our [free prompt enhancer](/tool) to automatically fix all of these mistakes →