EC
TS1485
TypeScriptERRORNotableSyntaxHIGH confidence

'X' resolves to a type-only declaration and must be imported using a type-onl...

Production Risk

Build will fail; resolve before shipping.

What this means

A syntax error (TS1485): 'X' resolves to a type-only declaration and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled.. This diagnostic is emitted by the TypeScript compiler when 'X' resolves to a type-only declaration and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled..

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

TypeScript compiler reports TS1485 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS1485
// 'X' resolves to a type-only declaration and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled.

expected output

error TS1485: 'X' resolves to a type-only declaration and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled.

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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