gulp watch TypeError: glob pattern string required

error:
gulp serve

[09:35:04] Working directory changed to F:\new-gulp-test
[09:35:05] Using gulpfile F:\new-gulp-test\gulpfile.js
[09:35:05] Starting 'sass'...
[09:35:05] 'sass' errored after 8.94 ms
[09:35:05] TypeError: glob pattern string required
    at new Minimatch (F:\new-gulp-test\node_modules\gulp-ruby-sass\node_modules\glob\node_modules\minimatch\minimatch.js:108:11)
    at setopts (F:\new-gulp-test\node_modules\gulp-ruby-sass\node_modules\glob\common.js:112:20)
    at new GlobSync (F:\new-gulp-test\node_modules\gulp-ruby-sass\node_modules\glob\sync.js:38:3)
    at Function.globSync [as sync] (F:\new-gulp-test\node_modules\gulp-ruby-sass\node_modules\glob\sync.js:24:10)
    at F:\new-gulp-test\node_modules\gulp-ruby-sass\index.js:68:21
    at Array.forEach (native)
    at gulpRubySass (F:\new-gulp-test\node_modules\gulp-ruby-sass\index.js:67:10)
    at Gulp.<anonymous> (F:\new-gulp-test\gulpfile.js:59:15)
    at module.exports (F:\new-gulp-test\node_modules\.npminstall\orchestrator\0.3.7\orchestrator\lib\runTask.js:34:7)
    at Gulp.Orchestrator._runTask (F:\new-gulp-test\node_modules\.npminstall\orchestrator\0.3.7\orchestrator\index.js:273:3)

gulpfile.js

var minifycss = require('gulp-minify-css'),// CSS压缩
    uglify = require('gulp-uglify'),// js压缩
    concat = require('gulp-concat'),// 合并文件
    rename = require('gulp-rename'),// 重命名
    clean = require('gulp-clean');//清空文件夹
    
var gulp = require('gulp'),
    sass = require('gulp-ruby-sass'),
    filter = require('gulp-filter');
    notify = require('gulp-notify'),
    plumber = require('gulp-plumber');
    browserSync = require('browser-sync').create(),
    reload     = browserSync.reload;
    
gulp.task('serve', ['sass'], function() {
    browserSync.init({
        server: "./stc"
    });
    gulp.watch("stc/scss/*.scss", ['sass']);
    gulp.watch("stc/*.html").on('change', reload);
});

gulp.task('sass', function() {
    return gulp.src(['stc/scss/*.scss','!stc/scss/extend/{reset,test}.scss'])
        .pipe(plumber({errorHandler: notify.onError('Error: <%= error.message %>')}))
        .pipe(sass({sourcemap: true}))
        .pipe(gulp.dest('stc/css'))// Write the CSS & Source maps     59行
        .pipe(filter('**/*.css')) // Filtering stream to only css files
        .pipe(browserSync.reload({stream:true}));
});

gulp.task('default', ['serve']);

这个是什么错，谁知道？

---

又闹，是不是又不好好看文档了，人家哪是你那么用的，怎么着也得是这样啊：

gulp.task('sass', function() {
    return sass(['stc/scss/*.scss','!stc/scss/extend/{reset,test}.scss'], {sourcemap: true})
        .pipe(gulp.dest('stc/css'))// Write the CSS & Source maps     59行
        .pipe(filter('**/*.css')) // Filtering stream to only css files
        .pipe(browserSync.reload({stream:true}));
});

来，我们仔细看看文档：