Less.js: 3.11.0 version ,gulp-less not work

Created on 10 Feb 2020 · 7Comments · Source: less/less.js

// installed gulp-less last version
require("gulp-less")

C:\project\com\JK724.XCX.WechatShopping\node_modules\accord\lib\adapter_base.js:105
        throw new Error("'tried to require: " + this.supportedEngines + "'.\nNone found. Make sure one has been installed!");
        ^

Error: 'tried to require: less'.
None found. Make sure one has been installed!
    at Less.Adapter (C:\project\com\JK724.XCX.WechatShopping\node_modules\accord\lib\adapter_base.js:105:15)
    at new Less (C:\project\com\JK724.XCX.WechatShopping\node_modules\accord\lib\adapters\less\2.x - 3.x.js:17:41)
    at Object.exports.load (C:\project\com\JK724.XCX.WechatShopping\node_modules\accord\lib\index.js:31:12)
    at Object.<anonymous> (C:\project\com\JK724.XCX.WechatShopping\node_modules\gulp-less\index.js:9:29)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)
    at Module.require (internal/modules/cjs/loader.js:692:17)

in package.json of gulp-less:

    "less": "2.6.x || ^3.7.1",

Source

bigmeow

👍12

Most helpful comment

My current solution is to lock the less version number in the project's package.json file:

"less": "3.10.3"

bigmeow on 10 Feb 2020

👍3

All 7 comments

We are experiencing the same issue as of today:
"less": "^3.8.1"

Dimitar-Goshev on 10 Feb 2020

👍2

Also reproducible with grunt-contrib-less ("grunt-contrib-less": "2.0.0") which uses "less": "^3.0.4".

dgavril on 10 Feb 2020

My current solution is to lock the less version number in the project's package.json file:

"less": "3.10.3"

bigmeow on 10 Feb 2020

👍3

@bigmeow any idea why my CI build is still failing?

I run:

 call npm install --no-optional

but it doesn't seem to be getting the right version even with package.json above.

jmwolfe on 10 Feb 2020

In case any one else has this issue, the problem was I was interpreting someone's comment on the gulp-less project as applying to grunt/bower.. however it was the package.json option for yarn (resolutions:).

This little trick worked for me to peg the dependent less version to 3.10.3:

https://stackoverflow.com/questions/52416312/npm-equivalent-of-yarn-resolutions

only thing is you have to get the right directory in your CI path so it can find npx. HTH.

jmwolfe on 10 Feb 2020

🎉1

My current solution is to lock the less version number in the project's package.json file:
"less": "3.10.3"

this doesn't seem to work if less is a dependent package to an installed package, like gulp-less. See my post above about implementing a resolutions tag in package.json for npm.

jmwolfe on 10 Feb 2020

Closing as duplicate of https://github.com/less/less.js/issues/3469