EC
TS2303
TypeScriptERRORNotableTypeHIGH confidence

Circular definition of import alias 'X'.

Production Risk

Build will fail; resolve before shipping.

What this means

A type-checking error (TS2303): Circular definition of import alias 'X'.. This diagnostic is emitted by the TypeScript compiler when circular definition of import alias 'X'..

Why it happens
  1. 1The type definition is circular or infinitely recursive
How to reproduce

TypeScript compiler reports TS2303 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS2303
// Circular definition of import alias 'X'.

expected output

error TS2303: Circular definition of import alias 'X'.

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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