Trailing comma at the end of the package.json

[grepstrength]

I was getting the following errors when I tried to run this:

PS C:\Tools\Nodejs-Tracer-main > node -r tracer.js C:\PATH\TO\FILE.js
node:internal/modules/package_json_reader:111
  const result = modulesBinding.getNearestParentPackageJSON(checkPath);
                                ^
Error: Invalid package config \\?\C:\Tools\Nodejs-Tracer-main\package.json.
    at Object.getNearestParentPackageJSON (node:internal/modules/package_json_reader:111:33)
    at trySelf (node:internal/modules/cjs/loader:591:33)
    at Function._resolveFilename (node:internal/modules/cjs/loader:1226:24)
    at Function._load (node:internal/modules/cjs/loader:1075:27)
    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
    at wrapModuleLoad (node:internal/modules/cjs/loader:219:24)
    at Module.require (node:internal/modules/cjs/loader:1340:12)
    at node:internal/modules/cjs/loader:1843:12
    at loadPreloadModules (node:internal/process/pre_execution:727:5)
    at setupUserModules (node:internal/process/pre_execution:206:5) {
  code: 'ERR_INVALID_PACKAGE_CONFIG'
}
Node.js v22.12.0

Then I realized the package.json file has a trailing comma after "license":"MIT":

{
  "name": "Nodejs-tracer",
  "version": "1.0.0",
  "description": "Simple Node.jstracer that logs calls to core modules",
  "main": "tracer.js",
  "scripts": {
    "start": "node -r .\tracer.js main.js",
    "test": "echo \"No tests specified\" && exit 0"
  },
  "keywords": ["node", "tracer", "main"],
  "author": "Sven Rath",
  "license": "MIT",
}

After removing this, the script runs without errors.