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Parcel JS: tree.render is not a function

Whenever I try to run production build command npm run build or npx parcel build index.html, I get this error. I have a simple html and css project, no react, no 3rd party library Why could this be happening? I have tried parcel versions 1.12.3, 1.12.4 and 1.12.5.

Here is the error:

/Users/user/Documents/HTML Apps/Project/index.html: tree.render is not a function
at /Users/user/Documents/HTML Apps/Project/node_modules/htmlnano/lib/modules/minifySvg.js:19:23
at /Users/user/Documents/HTML Apps/Project/node_modules/posthtml/lib/api.js:91:45
at traverse (/Users/user/Documents/HTML Apps/Project/node_modules/posthtml/lib/api.js:105:26)
at traverse (/Users/user/Documents/HTML Apps/Project/node_modules/posthtml/lib/api.js:111:5)
at traverse (/Users/user/Documents/HTML Apps/Project/node_modules/posthtml/lib/api.js:105:17)
at traverse (/Users/user/Documents/HTML Apps/Project/node_modules/posthtml/lib/api.js:111:5)
at traverse (/Users/user/user/HTML Apps/Project/node_modules/posthtml/lib/api.js:105:17)
at traverse (/Users/user/Documents/HTML Apps/Project/node_modules/posthtml/lib/api.js:111:5)
at traverse (/Users/user/Documents/HTML Apps/Project/node_modules/posthtml/lib/api.js:105:17)
at traverse (/Users/user/Documents/HTML Apps/Project/node_modules/posthtml/lib/api.js:111:5)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] build: `parcel build index.html`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /Users/user/.npm/_logs/2021-04-14T07_44_52_872Z-debug.log
Solution

  • In my case it worked adding .htmlnanorc.js to my project root with the following:

    module.exports = {
    "minifySvg": false
  }