EC
TS6160
TypeScriptERRORNotableConfigHIGH confidence

[Deprecated] Use '--skipLibCheck' instead. Skip type checking of default libr...

Production Risk

Build will fail; resolve before shipping.

What this means

A compiler configuration error (TS6160): [Deprecated] Use '--skipLibCheck' instead. Skip type checking of default library declaration files.. This diagnostic is emitted by the TypeScript compiler when [Deprecated] Use '--skipLibCheck' instead. Skip type checking of default library declaration files..

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

TypeScript compiler reports TS6160 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS6160
// [Deprecated] Use '--skipLibCheck' instead. Skip type checking of default library declaration files.

expected output

error TS6160: [Deprecated] Use '--skipLibCheck' instead. Skip type checking of default library declaration files.

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

Content generated with AI assistance and reviewed for accuracy. Found an error? hello@errcodes.dev

← All TypeScript errors