我不知道为什么收到此错误AssertionError [ERR_ASSERTION]:必须指定任务功能GULP(节点js,梯形js)。是什么导致此错误?任何人都可以帮忙吗?我正在使用Keystone应用程序和Sass编译吗? gulp文件,它将重新启动keystonejs应用程序并编译sass。这是关于gulp版本的问题吗,我package.json中的目标版本是“ gulp”:“ ^ 4.0.2”,。
var gulp = require('gulp');
var jshint = require('gulp-jshint');
var jshintReporter = require('jshint-stylish');
var watch = require('gulp-watch');
var sass = require('gulp-sass');
var shell = require('gulp-shell')
var bs = require('browser-sync').create();
var paths = {
'src':['./models/**/*.js','./routes/**/*.js', 'keystone.js', 'package.json'],
'style': {
all: './public/styles/**/*.scss',
output: './public/styles/'
}
};
// gulp lint
gulp.task('lint', function(){
gulp.src(paths.src)
.pipe(jshint())
.pipe(jshint.reporter(jshintReporter));
});
// gulp watcher for lint
gulp.task('watch:lint', function () {
gulp.src(paths.src)
.pipe(watch())
.pipe(jshint())
.pipe(jshint.reporter(jshintReporter));
});
gulp.task('sass', function(){
gulp.src(paths.style.all)
.pipe(sass().on('error', sass.logError))
.pipe(gulp.dest(paths.style.output))
.pipe(bs.stream());
});
gulp.task('watch:sass', function () {
gulp.watch(paths.style.all, ['sass']);
});
gulp.task('browser-sync', function(){
bs.init({
proxy: 'http://localhost:3000',
port: '4000'
});
});
gulp.task('runKeystone', shell.task('node keystone.js'));
gulp.task('watch', ['watch:sass', 'watch:lint']);
gulp.task('default', ['watch', 'runKeystone', 'browser-sync']);