EC
TS6505
TypeScriptERRORNotableConfigHIGH confidence

Print names of files and the reason they are part of the compilation.

Production Risk

Build will fail; resolve before shipping.

What this means

A compiler configuration error (TS6505): Print names of files and the reason they are part of the compilation.. This diagnostic is emitted by the TypeScript compiler when print names of files and the reason they are part of the compilation..

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

TypeScript compiler reports TS6505 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS6505
// Print names of files and the reason they are part of the compilation.

expected output

error TS6505: Print names of files and the reason they are part of the compilation.

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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