asp mvc IIS7 less/sass empty file

Question

I'm trying to use less in my new project. I've installed dotLess and System.Web.Optimization.Less packeges (as described in Yet Another "Add LESS to your ASP.NET MVC Project" Post) and locally everything works fine. But when I publish project IIS7 server responds with empty css file /Content/Main/site?v=

Here is my web.config

...

<configSections>
  <section name="dotless" type="dotless.Core.configuration.DotlessConfigurationSectionHandler, dotless.Core" />
</configSections>

<system.web>
  <httpHandlers>
  <add path="*.less" verb="GET" type="dotless.Core.LessCssHttpHandler, dotless.Core" />
</httpHandlers>
</system.web>

<system.webServer>
  <validation validateIntegratedModeConfiguration="false" />
  <handlers>
    <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
    <add name="dotless" path="*.LESS" verb="*" type="dotless.Core.LessCssHttpHandler,dotless.Core" resourceType="File" preCondition=""/>
  </handlers>
</system.webServer>

<dotless minifyCss="false" cache="true" web="false" />

And my BundleConfig.cs

bundles.Add(new LessBundle("~/Content/Main/site").Include("~/Content/Main/Site.less"));

When I append css extension to my Site.less file (Site.less.css) server responds with content (/Content/Main/site?v=K-FFpFNtIXPUlQamnX3qHX_A5r7TM2xbAgcuEmpm3O41) but it still pure less with all its variables and etc.

The same with Bundle Transformer: Sass and SCSS

What have I missed?

Colin Bacon · Accepted Answer · 2014-05-13 17:06:41Z

1

As you are getting

/Content/Main/site?v=K-FFpFNtIXPUlQamnX3qHX_A5r7TM2xbAgcuEmpm3O41

then this means that the bundling is working correctly. Therefore there is probably something in Site.less that is causing the problem. One thing to watch out for is relative urls. For example if you have an image in your css

.bacon {
    background-image: url(bacon.png);
}

The bundle will look for this with ~/Content/Main taken from the name of the bundle. (/site is fine and can be anything, it's just the name of the bundle)

The first thing to try is take out any imports, images etc and see if it bundles correctly. You can do this on your local dev build by enabling optimizations in the your bundle config.

BundleTable.EnableOptimizations = true

answered May 13, 2014 at 17:06

Colin Bacon

15.6k8 gold badges56 silver badges76 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Aray Karjauv Over a year ago

I've removed all the less and leave only the body{ font-family: Arial; } but still get empty site?v=

Konard · Accepted Answer · 2016-01-13 11:42:14Z

0

Another way to solve this is to remove dependency on System.Web.Optimization.Less and dotLess and use free Visual Studio Extension https://github.com/madskristensen/WebCompiler for precompilation of less to css (with and without minification).

answered Jan 13, 2016 at 11:42

Konard

3,10436 silver badges28 bronze badges

Collectives™ on Stack Overflow

asp mvc IIS7 less/sass empty file

2 Answers 2

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related