ts-r
  • Error
  • Reported by the type checker

TS2307

Cannot find module '{0}' or its corresponding type declarations.

An import's module can't be found: the package isn't installed, the path is wrong, or it has no type declarations.

What it means

Module resolution found no file for the specifier, neither a TypeScript file, a .d.ts, nor a package with types. The resolution rules depend on module and moduleResolution in tsconfig.json.

Example

index.ts
import { format } from "./utils/date";

export const today = format(new Date());
ts-r-check -p tsconfig.json --pretty false ts-r output
index.ts(1,24): error TS2307: Cannot find module './utils/date' or its corresponding type declarations.

Recorded by node scripts/verify-examples.mjs with ts-r built from commit 6deaf01. The example uses the default tsconfig: strict, target: es2022, module: esnext, moduleResolution: bundler.

How to fix

  • Check the relative path and the file's extension.
  • Install the package (and its @types/ package if it ships no types).
  • Check paths, baseUrl and moduleResolution in tsconfig.json.