Strange deprication warnings and layout()/layout-at() mixins

[fileboxxx]

as soon as i am trying to use layout() mixins, i got warnings:

WARNING: DEPRECATION: In order to remove global variable naming conflicts, Singularity's settings have been moved into the single `$singularity` variable. Please refer to our documentation (https://github.com/Team-Sass/Singularity/wiki) on how to update your settings. In the next version of Singularity, this warning will be removed. split has been returned.
         on line 37 of /tmp/Tests/compass/grids/bower_components/singularitygs/stylesheets/singularitygs/helpers/_find.scss, in `grid-span'
         from line 20 of /tmp/Tests/compass/grids/sass/_grids.scss, in `@content'
         from line 91 of /tmp/Tests/compass/grids/bower_components/singularitygs/stylesheets/singularitygs/helpers/_layout.scss, in `@content'
         from line 68 of /tmp/Tests/compass/grids/bower_components/singularitygs/stylesheets/singularitygs/helpers/_layout.scss, in `layout'
         from line 90 of /tmp/Tests/compass/grids/bower_components/singularitygs/stylesheets/singularitygs/helpers/_layout.scss, in `@content'
         from line 66 of /tmp/Tests/compass/grids/bower_components/breakpoint-sass/stylesheets/_breakpoint.scss, in `breakpoint'
         from line 87 of /tmp/Tests/compass/grids/bower_components/singularitygs/stylesheets/singularitygs/helpers/_layout.scss, in `layout-at'
         from line 6 of /tmp/Tests/compass/grids/sass/_grids.scss
         from line 7 of /tmp/Tests/compass/grids/sass/screen.scss


WARNING: DEPRECATION: In order to remove global variable naming conflicts, Singularity's settings have been moved into the single `$singularity` variable. Please refer to our documentation....

.......................
up to 7 identical warning messages

my screen.scss:

@import "breakpoint";
@import "grids";
``` css

my _grids.scss:
```css
@import "singularitygs";

//@include layout() {
//@include layout-at(('grid': 3 2 1 1 1, 'gutter': 1/4), 1024px) {
@include layout-at(3 2 1 1 1, 1024px) {
    .panel-1 {
        @include grid-span(1, 2);
    }
    .panel-2 {
        @include grid-span(1, 1);
    }
    .panel-3 {
        @include grid-span(1, 3);
    }
    .panel-4 {
        @include grid-span(1, 4);
    }
    .panel-5 {
        @include grid-span(1, 5);
    }
}
```css

Env versions:

bower singularitygs#~1.6.2 cached git://github.com/at-import/Singularity.git#1.6.2

Sass 3.4.14 (Selective Steve)

Compass 1.0.3 (Polaris)
Copyright (c) 2008-2015 Chris Eppstein

How to fix that ?