Type Errors

chant uses the TypeScript type checker, so type errors are identical to what your IDE shows.

Common Type Errors

Wrong Property Type

src/bucket.ts:3:5 error Type 'number' is not assignable to type 'string'.

A resource property has the wrong type. Check the lexicon type definitions for the expected type.

Missing Required Property

src/bucket.ts:2:1 error Property 'name' is missing in type '{ acl: string; }'.

Add the missing required property to the resource constructor.

Invalid Property Name

src/bucket.ts:4:5 error Object literal may only specify known properties.

Check the property name casing. Lexicon types use the casing defined by the provider.

Debugging Type Errors

Your editor provides the same diagnostics with hover information. To inspect lexicon type definitions:

1. Hover over a resource class and use “Go to Definition”
2. Review the property types and required fields

Type Errors vs Lint Errors

Prefix	Source	Example
TS####	TypeScript type checker	TS2322: Type 'number' is not assignable to type 'string'
EVL###	Evaluability lint rules	EVL001: expression not statically evaluable
COR###	Correctness lint rules	COR008: resource declaration must be exported

All three categories are reported by chant lint in a single pass.