EC
TS6676
TypeScriptERRORNotableConfigHIGH confidence

Raise an error when a function parameter isn't read.

Production Risk

Build will fail; resolve before shipping.

What this means

A compiler configuration error (TS6676): Raise an error when a function parameter isn't read.. This diagnostic is emitted by the TypeScript compiler when raise an error when a function parameter isn't read..

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

TypeScript compiler reports TS6676 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS6676
// Raise an error when a function parameter isn't read.

expected output

error TS6676: Raise an error when a function parameter isn't read.

Fix

Fix the tsconfig.json option

WHEN When a compiler option is invalid or missing

Fix the tsconfig.json option
// tsconfig.json
{
  "compilerOptions": {
    // Review and correct the flagged option
  }
}
// Run: npx tsc --showConfig to see effective config

Why this works

TypeScript validates tsconfig.json options; check the official tsconfig reference for valid values.

Sources
Official documentation ↗

TypeScript Compiler Diagnostics

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