EC
TS1363
TypeScriptERRORNotableSyntaxHIGH confidence

A type-only import can specify a default import or named bindings, but not both.

Production Risk

Build will fail; resolve before shipping.

What this means

A syntax error (TS1363): A type-only import can specify a default import or named bindings, but not both.. This diagnostic is emitted by the TypeScript compiler when a type-only import can specify a default import or named bindings, but not both..

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

TypeScript compiler reports TS1363 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS1363
// A type-only import can specify a default import or named bindings, but not both.

expected output

error TS1363: A type-only import can specify a default import or named bindings, but not both.

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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