Lovable Supabase Schema Error
Quick Answer
The code expects columns that don't exist in the Supabase table, or column names don't match between code and database. Start with "Check the error message" before making broader code changes.
You're in the right place if...
- !Error: column X does not exist
- !Data shape doesn't match table
- !Insert/update queries failing
Why this happens
The code expects columns that don't exist in the Supabase table, or column names don't match between code and database.
Fix
Check the error message
The error tells you which column is wrong. Look for 'column X does not exist' or 'null value in column X violates not-null constraint'.
Tell Lovable to fix schema
Include the error in your prompt:
Copy this prompt
I'm getting a database schema error. Please check that all Supabase table schemas match what the app is trying to insert/read. Fix any column name mismatches or missing required fields.
Prevent this next time
After Lovable creates database tables, verify in Supabase Dashboard → Table Editor that the columns match what the code expects.
Frequently Asked Questions
Supabase Dashboard → Table Editor → click your table. You'll see all columns, types, and constraints.
Yes. In Supabase SQL Editor, use ALTER TABLE to add or modify columns.
Related fixes
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