Unhandled rejection SequelizeUniqueConstraintError: Validation error

Question

I\'m getting this error:

Unhandled rejection SequelizeUniqueConstraintError: Validation error

How can I fix this?

This is my models/use

Answer 1

Building on @Ricardo Machado's answer, if you add unique:true to a model and already have values in an existing table that wouldn't be allowed under this new constraint you will get this error. To fix you can manually delete the rows or delete the table and so Sequelize builds it again.