Web Essentials 2012


Adds many useful features to Visual Studio for web developers.

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by Paul M. Callaghan | January 22 2013

by SDFprowler | January 22 2013

@Kommundsen You can change the location of the menu item by going into Tools > Customize > Commands, select Build from the "Menu bar" dropdown, select Web Essentials and Move Down (or do whatever else you want to it).

by Kim Ommundsen | January 17 2013

Very nice extension with a lot of good features. I would give this five stars if not for the extremly annoying location of the Web Essentials item in the BUILD menu. I would prefer it to be located further down or as a separate menu.

Mads Kristensen January 24 2013
| Edit |

This was fixed in version 2.4

by grundt | January 16 2013

by cyoung4213 | January 15 2013

Helped me a ton with a lot of things. I am looking forward to how far this can help my day to day tasks with CSS to be more streamline and simplified coding. In the past CSS has been daunting, web essentials is helping things be more fluid in my process.

by Matt Lavallee | January 12 2013

by AlanCai | January 11 2013

The less files save as UTF-8 with BOM will got "LESS: Syntax Error on line 1" error.
The less files save as UTF-8 without BOM is OK.

Mads Kristensen January 11 2013
| Edit |

You can save any .LESS file without the BOM by doing File -> Save foo.less As... -> Save with Encoding...

by johnlouros | January 11 2013

Awesome extension for Web Developers. Finally Visual Studio have something to pair up with the competition regarding Web Development.

A must have!

by Bahtiyar Özdere | January 11 2013

Firstly thanks for great extension.

In last upadate (v 2.3) I had an issue on less file compiling.
When I use this @import url('../../../../../Content/dizayn/css/i.less');
in my less file it gives an error that it cannot find the file. In earlier version (2.0) it compiles successfully. So I have installed 2.0 back again.

best regards

by Cruentus | January 11 2013

Great tool!
Finally good support to Zen Conding in Visual Studio. Though it would be nice to update it to use the lastest version, which was renamed to Emmet: http://emmet.io


by PB-Dev | January 09 2013

Absolutley fantastic!

by Mark Broadhurst | January 02 2013

Excellent tool set which keeps getting better and better.

by patryk.golus | December 30 2012

by AndreyVeselov | December 28 2012

Great tool. Waiting for full Sass support :)

by Peter87 | December 25 2012

When this extension isn't installed I'm constantly wondering, 'Now isn't it supposed to do...'
JavaScript regions are fantastic.

by mangran | December 24 2012


Mads Kristensen December 24 2012
| Edit |


You don't have to install every update. Just take the ones with features you like

by Ivan Stus | December 19 2012

Really great extension, but after the latest update I got the following error when trying to sort properties:

Could not load file or assembly 'Microsoft.Web.Languages, Version=, Culture=neutral, PublicKeyToken=24771839d8d21066' or one of its dependencies. The system cannot find the file specified.

Mads Kristensen December 23 2012
| Edit |

This is fixed in version 2.2

by Tiscs | December 19 2012

A very usefull extension, like it very much.

by z1c0 | December 15 2012

by massive-geek | December 15 2012

I'm getting exactly the same issue as samuel.milton.

Using VS2012 and getting his same issue

I'm getting "Undeclared variable" and "Undeclared mixins" when I edit the Bootstrap LESS-files which results in "Compile error" in the preview window...

Can you help me pls?

Mixins and variables on another sheet should they be available from another within importing the sheet? e.g. if I have colors.less and then layout.less should it fetch the vars/mixins from colors.less without importing it?
I'm quite new to less but seeing other projects that's what they don't usually import and import only to combine

P.S. really great extension!

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  • Good
    1 Posts | Last post February 13, 2015
    • One of the best.
  • SASS Compile Error Link
    1 Posts | Last post October 14, 2014
    • When you compile a not valid SASS files a Link Error is generated.
      This link is not connected to a running Web server.
      How can I customize this link.
      e.g. http://localhost:80/error.aspx
      Something went wrong reaching:
  • Recompile all less files doesn't work
    3 Posts | Last post October 11, 2014
    • Recompile all less files worked just fine, but when I've checkout fresh version into another folder it stop working (including recompile after build).
      If I open less file, change it and save (css is created) then this file works automatically since then just fine.
      Should I open each time I create a new repository all less files, or there is another way?
    • I have comitted only .less files, once I add corresponded .css, Web Essentials start works with it as expected.
    • The only way, find out for now is to commit .css files too. Though all my .css files are autogenerated and therefore it is a pitty, that I should commit .css along with .less and checkin .css on change of less too.
  • Minify CSS
    1 Posts | Last post September 30, 2014
    • On CSS minify, should there be an option to remove empty selectors?
  • Less compiling after Publish???
    1 Posts | Last post September 10, 2014
    • So, after clicking one-click publishing, I see this in my output put window in VS2012: 
      ========== Build: 1 succeeded, 0 failed, 1 up-to-date, 0 skipped ==========
      ========== Publish: 1 succeeded, 0 failed, 0 skipped ==========
      9/10/2014 3:15:40 PM: ImportMixins.less compiled
      9/10/2014 3:15:40 PM: rs-ui-tabs-from-bulleted-list.less compiled
      9/10/2014 3:15:40 PM: ImportVariables.less compiled
      9/10/2014 3:15:40 PM: variables.less compiled
      9/10/2014 3:15:40 PM: rs-custom-controls.less compiled
      This appears to me to be compiling LESS files after publishing my site.
      Is there a way to ensure compilation before publishing other than doing a manual build prior to hitting publish?
  • SCSS: unparsable compilation error:
    2 Posts | Last post July 31, 2014
    •  SCSS: Compiling style.scss
       SCSS: unparsable compilation error: 
      but no indication of the line # in the file. any help?
    • I am having this issue now as well. I have one site.scss file that imports various other partials. It was working fine until a few days ago when (seemingly) at random they started failing to compile on save. Now the partials require the other partials to be imported into them before they will compile. I've triple-checked my @import flow and it is perfect! Sassmeister and other compilers have no issue.
      Specifically, I get the "unparsable compilation error" as well as meaningless "(X)101" errors in the Error List. No line numbers or suggestions to be found.
      Any help would be greatly appreciated!
  • V2.2.7 fails to install on VS2013wU2
    1 Posts | Last post July 23, 2014
    • Complains that this version of product is not supported... 
  • Web Essentials context menu on .js files
    1 Posts | Last post June 19, 2014
    • Why is it when I right click some statndard js files, in the web essentials context menu everything but "Run JSHint" and "Run JSCS" is grayed out and cannot be used?
  • Create Image Sprite
    2 Posts | Last post June 19, 2014
    • Hello,
      I just installed this extension looking for this awesome functionality. Unfortunately, I can not create a image sprite from my images. The option directly does not appears at context menu. I don't know how to enable it. Am I forgetting any step after installing the extension?
      I am working with VS Professional 2012 (Update 4), and ASP.NET Web Frameworks and Tools 2013.1.
      Thank you so much for your time and efforts!
    • Hi again,
      After tweeting about this to Mads Kristensen, he has responded that the functionality I am looking for, is only available in WE2012.
  • Javascript Minifier
    1 Posts | Last post June 10, 2014
    • First off, great tool you are providing.  Have made my network footprint as small as possible.
      First problem i noticed was that when i enabled JS Minification, the *.map files were getting 404 responses.  After review of the *.min.js file i noticed that the Mapping URL line did not include the folder directory they were located.
      //# sourceMappingURL=app.utility.min.js.map
      Had to add the folder to the 'sourceMappingURL' in order to not get the 404:
      //# sourceMappingURL=Scripts/app.events.min.js.map
      Not sure if its possible but might be well worth looking into it for 2013, if not 2012 update.
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