File Upload Not Working in Lovable
Quick Answer
File uploads need Supabase Storage configured with proper bucket policies. Lovable may generate a UI without connecting it to storage. Start with "Connect to Supabase Storage" before making broader code changes.
You're in the right place if...
- !Upload button does nothing
- !File upload errors after selection
- !Files disappear after upload
Why this happens
File uploads need Supabase Storage configured with proper bucket policies. Lovable may generate a UI without connecting it to storage.
Fix
Connect to Supabase Storage
Tell Lovable to set up file uploads properly:
Copy this prompt
File upload is not working. Please: 1. Connect file uploads to Supabase Storage 2. Create an 'uploads' bucket in Supabase Storage 3. Add proper file size validation (max 10MB) 4. Show upload progress to the user 5. Store the file URL in the database after successful upload
Prevent this next time
When your founding prompt includes file uploads, specify: 'use Supabase Storage for file uploads with a 10MB size limit and upload progress indicator.'
Frequently Asked Questions
In Supabase Storage. Each file gets a public URL you can use in your app. Files persist across sessions.
Supabase free tier: 50MB per file. Set your app limit lower (e.g. 10MB) to prevent abuse.
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