LESS files intermittently not being included in Bundle

Question

In my ASP.NET MVC5 project I'm using Bundling/Minification and dotless together.

var commonCss = new StyleBundle("~/bundles/main.css").Include(
                "~/CSS/global.css",
                "~/CSS/header.less",
                "~/CSS/footer.css"
                );

commonCss.Transforms.Clear();
commonCss.Transforms.Add(new LessTransform());
commonCss.Transforms.Add(new ConfigurableStyleTransform(cssSettings));

return commonCss;

LessTransform() is from System.Web.Optimization.Less.

Intermittently I'm seeing the header.less file not being included in the bundle. Sometimes it will, sometimes it won't, without any code changes.

I've ran the LESS file through a validator and no issues found.

The only other times I've seen a file not being included in a bundle is when the file cannot be found, or theres a syntax issue. However this doesn't seem applicable for this instance.

What possible reasons are there for this file not being included in the bundle?

Did you ever resolve this? We're seeing this issue intermittently as well. — Charles Boyung, Feb 16 '15 at 22:49
@CharlesBoyung Unfortunately no. We switched over to using VS Web Essentials to pre-compile to CSS. To be fair this is actually a better solution as theres no on-the-fly conversion each time the CSS is requested. — Curtis, Feb 23 '15 at 12:12

Rytmis · Answer 1 · 2015-02-19T11:04:18.107

1

You might be hitting this bug in dotless. If that's the case, until it gets fixed, you can get around it by specifying disableParameters="true" in the dotless section of your Web.config.

edited Feb 19 '15 at 11:04

answered Feb 18 '15 at 19:17

Rytmis

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LESS files intermittently not being included in Bundle

1 Answers1