EC
TS6409
TypeScriptERRORNotableConfigHIGH confidence

Use the package.json 'imports' field when resolving imports.

Production Risk

Build will fail; resolve before shipping.

What this means

A compiler configuration error (TS6409): Use the package.json 'imports' field when resolving imports.. This diagnostic is emitted by the TypeScript compiler when use the package.json 'imports' field when resolving imports..

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

TypeScript compiler reports TS6409 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS6409
// Use the package.json 'imports' field when resolving imports.

expected output

error TS6409: Use the package.json 'imports' field when resolving imports.

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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