TypeError: Cannot read property 'substr' of undefined

[happysalada]

I got the error while running
node2nix --development -l package-lock.json

The package-lock.json was generated with node 16.3.0

Here is the package.json

package.json!

{
  "name": "union",
  "version": "0.0.1",
  "description": "Union is a platform to match talented traders with investors. For traders, its aim is helping develop their skill. For investors it helps find good alternative sources of investment",
  "repository": {},
  "license": "MIT",
  "scripts": {
    "deploy": "webpack --config ./webpack/webpack.prod.js",
    "watch": "webpack --config ./webpack/webpack.dev.js"
  },
  "browserslist": [
    "last 1 version",
    "not dead",
    "> 0.2%"
  ],
  "dependencies": {
    "@sentry/browser": "^6.5.1",
    "@sentry/tracing": "^6.5.1",
    "alpinejs": "^2.8.2",
    "core-js": "^3.14.0",
    "currency.js": "^2.0.4",
    "nprogress": "^0.2.0",
    "phoenix": "^1.5.9",
    "phoenix_html": "^2.14.3",
    "phoenix_live_view": "^0.15.7",
    "regenerator-runtime": "^0.13.7"
  },
  "devDependencies": {
    "@babel/core": "^7.14.5",
    "@babel/plugin-proposal-object-rest-spread": "^7.14.5",
    "@babel/plugin-transform-runtime": "^7.14.5",
    "@babel/preset-env": "^7.14.5",
    "@babel/runtime": "^7.14.5",
    "@fullhuman/postcss-purgecss": "^4.0.3",
    "@tailwindcss/forms": "^0.3.3",
    "autoprefixer": "^10.2.6",
    "babel-loader": "^8.2.2",
    "browserslist": "^4.16.6",
    "compression-webpack-plugin": "^8.0.0",
    "copy-webpack-plugin": "^9.0.0",
    "css-loader": "^5.2.6",
    "css-minimizer-webpack-plugin": "^3.0.1",
    "cssnano": "^5.0.5",
    "file-loader": "^6.2.0",
    "mini-css-extract-plugin": "^1.6.0",
    "postcss": "^8.3.1",
    "postcss-cli": "^8.3.1",
    "postcss-import": "^14.0.2",
    "postcss-loader": "^5.3.0",
    "style-loader": "^2.0.0",
    "tailwindcss": "^2.1.4",
    "terser-webpack-plugin": "^5.1.3",
    "webpack": "^5.38.1",
    "webpack-bundle-analyzer": "^4.4.2",
    "webpack-cli": "^4.7.2",
    "webpack-merge": "^5.8.0",
    "webpack-notifier": "^1.13.0"
  }
}

[happysalada]

package-lock.gz

[happysalada]

I understand that this is one of the newer version of node, I'm just pointing this out.
Thanks a lot for all the hard work that went into this node2nix!

[WolfangAukang]

Just wanted to comment that I'm also having the same issue with the same command

[thomasjm]

Like others reported, I saw this when using a new version of npm. It seemed to be due to the fact that package-lock.json was getting generated without integrity fields, which this tool expects.

The solution for me was to remove node_modules and regenerate:

rm -rf node_modules
rm -f package-lock.json
npm install
npm run node2nix --development --lock package-lock.json