Object keys must be quoted

What it means

In JSON every object key is a double-quoted string. Unquoted keys (and numeric keys) are valid in JavaScript object literals and JSON5, but not in JSON.

Example

{ name: "Ada" }

{ "name": "Ada" }

How to fix it

Wrap the key in double quotes.

Validate your JSON to see this and every other issue highlighted in one pass.

Diagnostics on this page come from @jsonlint/core, the open-source engine that powers the JSONLint validator. Install it with npm install @jsonlint/core.