EC
TS2794
TypeScriptERRORNotableTypeHIGH confidence

Expected X arguments, but got X. Did you forget to include 'void' in your typ...

Production Risk

Build will fail; resolve before shipping.

What this means

A type-checking error (TS2794): Expected X arguments, but got X. Did you forget to include 'void' in your type argument to 'Promise'?. This diagnostic is emitted by the TypeScript compiler when expected X arguments, but got X. Did you forget to include 'void' in your type argument to 'Promise'?.

Why it happens
  1. 1Incorrect number or type of generic type arguments
How to reproduce

TypeScript compiler reports TS2794 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS2794
// Expected X arguments, but got X. Did you forget to include 'void' in your type argument to 'Promise'?

expected output

error TS2794: Expected X arguments, but got X. Did you forget to include 'void' in your type argument to 'Promise'?

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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