AssertionError [ERR_ASSERTION]: Task never defined: sccs - did you mean? scss

Сделал я task и произошла ошибка

AssertionError [ERR_ASSERTION]: Task never defined: sccs - did you mean? scss

Мой gulpfile.js

    const sass = require('gulp-sass')
    const autoprefixer = require('gulp-autoprefixer')
    const cssnano = require('gulp-cssnano')

    gulp.task('scss', function() {
        return gulp
        .src('dev/scss/**/*.scss')
        .pipe(sass())
        .pipe(
            autoprefixer(['last 15 versions', '> 1%', 'ie 8', 'ie 7'], {
                cascade: true
            })
        )
        .pipe(cssnano())
        .pipe(gulp.dest('dist/css'))
    })

    gulp.task('default', gulp.series('sccs'), function() {
        gulp.watch('dev/sass/**/*.scss', gulp.series('scss'));
    })