EC
TS1286
TypeScriptERRORNotableSyntaxHIGH confidence

ECMAScript imports and exports cannot be written in a CommonJS file under 've...

Production Risk

Build will fail; resolve before shipping.

What this means

A syntax error (TS1286): ECMAScript imports and exports cannot be written in a CommonJS file under 'verbatimModuleSyntax'.. This diagnostic is emitted by the TypeScript compiler when eCMAScript imports and exports cannot be written in a CommonJS file under 'verbatimModuleSyntax'..

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

TypeScript compiler reports TS1286 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS1286
// ECMAScript imports and exports cannot be written in a CommonJS file under 'verbatimModuleSyntax'.

expected output

error TS1286: ECMAScript imports and exports cannot be written in a CommonJS file under 'verbatimModuleSyntax'.

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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