EC
TS2439
TypeScriptERRORNotableTypeHIGH confidence

Import or export declaration in an ambient module declaration cannot referenc...

Production Risk

Build will fail; resolve before shipping.

What this means

A type-checking error (TS2439): Import or export declaration in an ambient module declaration cannot reference module through relative module name.. This diagnostic is emitted by the TypeScript compiler when import or export declaration in an ambient module declaration cannot reference module through relative module name..

Why it happens
  1. 1Incorrect TypeScript syntax or type usage
  2. 2Type mismatch between declared and actual value
How to reproduce

TypeScript compiler reports TS2439 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS2439
// Import or export declaration in an ambient module declaration cannot reference module through relative module name.

expected output

error TS2439: Import or export declaration in an ambient module declaration cannot reference module through relative module name.

Fix

Address the TypeScript diagnostic

WHEN When this error is reported by the compiler

Address the TypeScript diagnostic
// Run the TypeScript compiler for details:
npx tsc --noEmit
// Use the TypeScript playground to test your code:
// https://www.typescriptlang.org/play

Why this works

Review the full error message and location; the TypeScript handbook provides guidance on each error category.

Sources
Official documentation ↗

TypeScript Compiler Diagnostics

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