How to include icon font in scss?

Question

Sass

Hey!
Faced a problem, I can not set the icon font. The assembly throws off the error, apparently the wrong syntax.

@font-face {
  font-family: "icons";
  src: url('../fonts/icons.eot');
  src: url('../fonts/icons.eot?#iefix') format('eot'),
    url('../fonts/icons.woff2') format('woff2'),
    url('../fonts/icons.woff') format('woff'),
    url('../fonts/icons.ttf') format('truetype'),
    url('../fonts/icons.svg#icons') format('svg');
}

.icon-base-pseudo {
  font-family: "icons";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  font-style: normal;
  font-variant: normal;
  font-weight: normal;
  // speak: none; // only necessary if not using the private unicode range (firstGlyph option)
  text-decoration: none;
  text-transform: none;
}

.icon-char(@filename) {
  $close: "\E001";
  $pay-icon-blue: "\E002";
  $pay-icon-orange: "\E003";
  $search: "\E004";
  $sort: "\E005";
  content: @@filename;
}

What's wrong? or where to look?
Building with less works fine, but I can't set it up in scss.
gulp-iconfont and gulp-iconfont-css are installed.
Screenshot of the error