The Less compiler (lessc) encounters an issue on a fresh operating system. ([TypeError: undefined is not a function])

After setting up my new development environment on Windows 10, I encountered an issue with less.

Following the instructions on lesscss.org, I installed less using:

npm install -g less

The installation process completed without any errors.

However, when trying to compile a .less file in the command line:

lessc input.less output.css

I received the following error message:

[TypeError: undefined is not a function]

Even after attempting to reinstall less and npm, the issue persisted. On my old system, compiling the same file worked perfectly. It appears that there may be a problem with the runtime environment on my new machine causing lessc to call an undefined function.

What would be the most effective approach to identifying and resolving this error?

javascriptcssnpmless

Answer №1

There are two ways to solve this issue effectively:

One option is to add the path of lessc to your Environment Variables. The PATH may look something like this: C:\Users\aayus\AppData\Roaming\npm\node_modules\less\bin\lessc. After setting up the path, you can run the command: lessc input.less output.css.

Another approach is to provide the full path to your lessc compiler while compiling your code: C:\Users\aayus\AppData\Roaming\npm\node_modules\less\bin\lessc styles.less styles.css.

If neither of these methods work for you, an alternative solution is to use an Online compiler. You can access one through this link: . Simply paste your less code and click on "Compile less" to generate the desired output.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Connecting two divs with lines in Angular can be achieved by using SVG elements such as

* Tournament Brackets Tree Web Page In the process of developing a responsive tournament brackets tree web page. * Connection Challenge I am facing an issue where I need to connect each bracket, represented by individual divs, with decorative lines linki ...

htmlcssangulartypescript

Can the style of certain words within a paragraph be altered using CSS only, without the need for any HTML tags?

Is it feasible to alter the appearance of certain words within a paragraph using CSS solely, without applying any HTML tags to those particular words? Awaiting a positive response. Thank you! ...

htmlcss

Top tips for seamless image transitions

Currently working on a slideshow project and aiming to incorporate smooth subpixel image transitions that involve sliding and resizing, similar to the Ken Burns effect. After researching various techniques used by others, I am curious to learn which ones ...

javascriptcanvascssslideshowtransition

Managing Flicker Effect by Implementing Theme Switching and Using Local Storage in Next.js with Ant Design

I've been working on a new feature to switch themes (light/dark) dynamically in a Next.js application using Ant Design. Successfully integrating the theme switch with a toggle switch and useState hook, I'm faced with the challenge of storing the ...

javascriptreactjsnext.jsantdserver-side-rendering

The npm installation command is inundated with a plethora of error messages

When I try to install node in my project using the command below: npm install I encounter the following error message: npm ERR! code ERESOLVE npm ERR! ERESOLVE could not resolve npm ERR! npm ERR! While resolving: <a href="/cdn-cgi/l/email-protection" ...

node.jsnpmwebpack

I recently updated all my projects to Angular 14, but when I tried to install a package using `npm i`, it still

The challenge at hand I encountered an issue with my two Angular projects. The first project serves as a library utilized by the second project. I recently upgraded both projects to Angular 14 following this guide. However, after running an npm i on the ...

angulartypescriptnpmdependencies

Having an issue with the 'scroll' event not being disabled in jQuery

Currently, we are encountering an issue with the implementation of a simple hiding menu when scrolling and showing it back once the user stops scrolling. The method .on('scroll') works as expected, but .off('scroll') is not functioning ...

javascriptjqueryhtmlcss

What is the best way to showcase all menu and submenu items in separate dropdown lists?

Having trouble with my code, it's not functioning properly. I can't pinpoint the error. The menu displays correctly but the submenu isn't showing up under specific menus. Here is the code snippet: ##Table: menus## id name ...

javascriptphpajaxlaravellaravel-5

How can UI tests be run in headless mode in Selenium 4 and above?

Selenium recently announced the release of Selenium 4, and they have also mentioned that there will be no support for PhantomJS from Selenium 4 onwards. Does this mean that Selenium no longer supports headless automation, or is there a different method t ...

javascriptnode.jsseleniumselenium-webdrivergoogle-chrome-headless

The Angular performance may be impacted by the constant recalculation of ngStyle when clicking on various input fields

I am facing a frustrating performance issue. Within my component, I have implemented ngStyle and I would rather not rewrite it. However, every time I interact with random input fields on the same page (even from another component), the ngStyle recalculate ...

javascriptangulartypescript

What is the process for adding an item to an object?

I currently have the following data in my state: fbPages:{'123':'Teste','142':'Teste2'} However, I am in need of a dynamic solution like the one below: async getFbPages(){ var fbPages = {} awa ...

javascriptreactjsreact-nativefrontend

Implementing automatic activation of a tab upon page load using Angular

I am currently working with a set of Bootstrap nav pills in my navigation bar. The 'ng-init' code in my Angular script sets the 'dateState' to 'past' on page load. However, I have noticed that the 'Past Events' nav p ...

javascripthtmlcssangularjs

What is the reason that .bin/www is recognized as a JavaScript file even though it does not have the .js extension when utilizing express-generator

Can you explain why .bin/www is recognized as a JavaScript file by express-generator even without the .js extension? Whenever I create a bin/ folder with a www file inside, it's automatically identified as a JavaScript file despite the missing .js ex ...

javascriptexpress

The element 'flat' is not found within the specified type

My challenge involves utilizing the flat() method in a TypeScript script. In my tsconfig.json file, I have set the target to es2017 and defined an interface for the input variable. However, I keep encountering this error message: Property 'flat' ...

javascripttypescript

Trouble with unproductive downtime in ReactJS and JavaScript

I'm looking for a way to detect idle time and display a dialog automatically after a certain period of inactivity. The dialog should prompt the user to click a button to keep their session active. Currently, when the user clicks the button it doesn&a ...

javascriptreactjsreact-hooks

Bring in a collection of classes of various types from one TypeScript file to another

In my code file exampleA.ts, I define an object as follows: import { ExampleClass } from 'example.ts'; export const dynamicImportations = { ExampleClass }; Later, in another file named exampleB.ts, I import an array that includes class types and ...

javascripttypescript

Changing the color of a tooltip for a specific element using Bootstrap 4

Is there a way to customize the tooltip background-color for icons with the classes "alert-danger" to red and "alert-success" to green using the following CSS commands: .alert-danger + .tooltip > .tooltip-inner { background-color: red !important; } ...

javascriptjqueryhtmlcsstooltip

Applying a CSS border to a div that perfectly encloses a span, adjusting to the

My goal is to create a nested structure where a div contains a span element like this: ---------- |Sentence| ---------- ----------------- |It's a looooong| |sentence | ----------------- While it works well for short sentences, long ones end u ...

htmlcss

Struggling to toggle the visibility of a table with a button - successfully hiding it, but unable to make it reappear?

I need a button that can toggle (show/hide) a table. Currently, my code hides the table successfully, but it fails to show the table again when I click the button. It seems like there is an issue with refreshing or redirecting after clicking the button for ...

javascripthtmlcss

React JS Calendar

I'm currently working on a project where I need to create a calendar component using React. The design requires the days to be displayed like in the Windows calendar, starting from Sunday even if it's another month and ending with Saturday. The ...

javascriptreactjsjsx