not sure what is going on here, It is not compiling to css.

/* LESS Document */
@base: #f938ab;

.box-shadow(@style, @c) when (iscolor(@c)) {
-webkit-box-shadow: @style @c;
box-shadow: @style @c;
}
.box-shadow(@style, @alpha: 50%) when (isnumber(@alpha)) {
.box-shadow(@style, rgba(0, 0, 0, @alpha));
}
.box {
color: saturate(@base, 5%);
border-color: lighten(@base, 30%);
div { .box-shadow(0 0 5px, 30%) }
}

css sheet looks like this.

/* Compiled Less CSS File */
/* Generated from "styles.css" */

/* Compiled Less CSS File */
/* Generated from "styles.css" */

Hello Bret,
Could you please tell us what version of Dreamweaver are you using?

cc 2014

I also have a similar problem that is causing error. See screen below

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