EC
TS95121
TypeScriptERRORNotableConfigHIGH confidence

Wrap all unparented JSX in JSX fragment

Production Risk

Build will fail; resolve before shipping.

What this means

A TypeScript diagnostic (TS95121): Wrap all unparented JSX in JSX fragment. This diagnostic is emitted by the TypeScript compiler when wrap all unparented JSX in JSX fragment.

Why it happens
  1. 1JSX syntax used without enabling '--jsx' compiler option
  2. 2Missing React or JSX runtime import
How to reproduce

TypeScript compiler reports TS95121 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS95121
// Wrap all unparented JSX in JSX fragment

expected output

error TS95121: Wrap all unparented JSX in JSX fragment

Fix

Enable JSX in tsconfig.json

WHEN Using JSX syntax in TypeScript files

Enable JSX in tsconfig.json
// tsconfig.json
{
  "compilerOptions": {
    "jsx": "react-jsx"  // or "react", "preserve", etc.
  }
}

Why this works

The '--jsx' option tells TypeScript how to transform JSX; choose 'react-jsx' for React 17+ or 'react' for older versions.

Sources
Official documentation ↗

TypeScript Compiler Diagnostics

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