EC
TS6503
TypeScriptERRORNotableConfigHIGH confidence

Print names of files that are part of the compilation and then stop processing.

Production Risk

Build will fail; resolve before shipping.

What this means

A compiler configuration error (TS6503): Print names of files that are part of the compilation and then stop processing.. This diagnostic is emitted by the TypeScript compiler when print names of files that are part of the compilation and then stop processing..

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

TypeScript compiler reports TS6503 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS6503
// Print names of files that are part of the compilation and then stop processing.

expected output

error TS6503: Print names of files that are part of the compilation and then stop processing.

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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