EC
TS6283
TypeScriptERRORNotableConfigHIGH confidence

Failed to find peerDependency 'X'.

Production Risk

Build will fail; resolve before shipping.

What this means

A compiler configuration error (TS6283): Failed to find peerDependency 'X'.. This diagnostic is emitted by the TypeScript compiler when failed to find peerDependency 'X'..

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

TypeScript compiler reports TS6283 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS6283
// Failed to find peerDependency 'X'.

expected output

error TS6283: Failed to find peerDependency 'X'.

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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