Eclipse plugin for LESS

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Mars (4.5), Luna (4.4), Kepler (4.3), Juno (4.2, 3.8), Previous to Juno (<=4.1), Neon (4.6), Oxygen (4.7), Photon (4.8), 2018-09 (4.9)

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Solution Description

LESS is a language which extends CSS with dynamic behavior such as variables, mixins, operations and functions. This plugin extends the Eclipse IDE by providing handy features to edit and compile LESS stylesheets.


Listed in Nodeclipse Plugins List.

Categories: Tools, Web

Tags: less, CSS, design

Additional Details

Eclipse Versions: Mars (4.5), Luna (4.4), Kepler (4.3), Juno (4.2, 3.8), Previous to Juno (<=4.1), Neon (4.6), Oxygen (4.7), Photon (4.8), 2018-09 (4.9)

Platform Support: Windows, Mac, Linux/GTK

Organization Name: Vincent Simonet

Development Status: Beta

Date Created: Monday, January 13, 2014 - 05:33

License: EPL

Date Updated: Wednesday, December 14, 2022 - 09:48

Submitted by: Vincent Simonet

Date Ranking Installs Clickthroughs
June 2024 475/667 7 11
May 2024 443/682 12 10
April 2024 483/687 9 7
March 2024 466/694 11 5
February 2024 469/687 9 9
January 2024 378/691 23 9
December 2023 459/671 10 8
November 2023 438/686 15 6
October 2023 410/673 20 11
September 2023 435/663 14 9
August 2023 455/673 11 6
July 2023 363/668 23 8
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Unsuccessful Installs

Unsuccessful Installs in the last 7 Days: 0

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Reviews Add new review

I am getting a NullPointerException from XtextReconcilerJob on every edit and save with syntactically correct LESS code (compiles with lessc 2.5.1) when using @import url("…"); with full filename. Commenting out the @import line solves this. The import defines, and the LESS stylesheet uses, parametric mixins that were not introduced before LESS 1.7.2, like

.keyframes (@name, @rules) {
@-moz-keyframes @name {
@-webkit-keyframes @name {
@keyframes @name {

But although I am getting syntax errors in the import from the plugin, that does not appear to be the cause of the problem (it is the same with commented out mixin definitions and calls).

For those of you annoyed by the XtextReconcilerJob bug: it can be avoided by entering full file names in your import directives.
I.e: @import "stylesheet" will trigger the bug, while @import "stylesheet.less" won't.

Version number here is 1.0.19
On the website http:// www .normalesup. org/~simonet/soft/ow/eclipse-less.en. html you can download version 1.0.21 (2014-06-01)

An internal error occurred during: "XtextReconcilerJob".

As above, I have to keep closing the warning dialog. I'll be uninstalling until this can be fixed.

An internal error occurred during: "Xtext validation".

This raises an alert that must be clicked repeatedly when looking at any .less file

Also seeing this error:
An internal error occurred during: "XtextReconcilerJob".

Reverting to version 1.0.19 of this plugin doesn't get rid of the problem, which comes from a dependency on Xtext, which was also updated recently.

I recommend not installing either until the problem is resolved.

Note that Eclipse shows a syntax error on a perfectly valid .less snippet that contains a mixin.