TypeScript
Types of property are incompatible
Types of property '{0}' are incompatible.TypeScript compared two object types and found that a property with the same name has incompatible types between them.
Error AtlasError Documentation and ResolutionObserved message
Types of property '{0}' are incompatible.Why it happens
- Two related types define the same property with incompatible value types.
- An object assignment or interface extension introduces a conflicting property definition.
- A refactor changed one side of a shared contract without updating the other.
How to fix it
- Make the property types consistent across both object shapes.
- Review interface extension, implementation, or assignment paths for conflicting declarations.
- Use a union or separate type only if the design intentionally permits multiple property shapes.
Official reference
TypeScript Handbook: Type CompatibilityRelated errors
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