Saya mencoba menjalankan perintah di bawah ini tetapi sayangnya saya mengalami kesalahan.
$ gulp build
Di terminal saya dan saya mendapatkan kesalahan pernyataan ini. Saya telah menghapus node dan NPM dan menginstal ulang lagi menggunakan brew - Bagaimana cara menghapus instalan Node.js sepenuhnya, dan menginstal ulang dari awal (Mac OS X) dengan langkah-langkah ini. Versi node saya adalah v10.5.0 dan versi npm adalah 6.1.0
.
Sistem saya adalah MacOS High Sierra 10.13.2
assert.js:269
throw err;
^
AssertionError [ERR_ASSERTION]: Task function must be specified
at Gulp.set [as _setTask] (bulkit/startup-kit/node_modules/undertaker/lib/set-task.js:10:3)
at Gulp.task (startup-kit/node_modules/undertaker/lib/task.js:13:8)
at Object.<anonymous>
at Module._compile (internal/modules/cjs/loader.js:702:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:713:10)
at Module.load (internal/modules/cjs/loader.js:612:32)
at tryModuleLoad (internal/modules/cjs/loader.js:551:12)
at Function.Module._load (internal/modules/cjs/loader.js:543:3)
at Module.require (internal/modules/cjs/loader.js:650:17)
at require (internal/modules/cjs/helpers.js:20:18)
package.json
{
"name": "bulkit-startup",
"version": "0.0.1",
"description": "Bulkit Startup Kit",
"main": "Gruntfile.js",
"devDependencies": {
"autoprefixer": "^6.3.6",
"browser-sync": "^2.24.5",
"gulp": "^4.0.0",
"gulp-clean": "^0.3.2",
"gulp-concat": "^2.6.0",
"gulp-postcss": "^6.1.0",
"gulp-sass": "^2.2.0",
"gulp-sourcemaps": "^1.6.0",
"jquery": "^3.3.1",
"mq4-hover-shim": "^0.3.0",
"panini": "^1.3.0",
"rimraf": "^2.5.2"
},
"engines": {
"node": ">=0.10.1"
},
"scripts": {
"start": "gulp",
"build": "gulp build"
},
"repository": {
"type": "git",
"url": "https://github.com/cssninjaStudio/bulkit.git"
},
"bugs": {
"url": "https://github.com/cssninjaStudio/bulkit/issues",
"email": "[email protected]"
},
"author": "Css Ninja <[email protected]> (https://cssninja.io/themes/bulkit)",
"license": "Commercial",
"private": true,
"dependencies": {
"bulma": "^0.7.0",
"del": "^3.0.0",
"jquery-waypoints": "^2.0.5",
"jquery.counterup": "^2.1.0",
"scrollreveal": "^3.4.0",
"slick-carousel": "^1.8.1",
"wallop": "^2.4.1"
}
}
gulpfile.js
var gulp = require('gulp');
var clean = require('gulp-clean');
var sass = require('gulp-sass');
var sourcemaps = require('gulp-sourcemaps');
var postcss = require('gulp-postcss');
var autoprefixer = require('autoprefixer');
var mq4HoverShim = require('mq4-hover-shim');
var rimraf = require('rimraf').sync;
var browser = require('browser-sync');
var panini = require('panini');
var concat = require('gulp-concat');
var port = process.env.SERVER_PORT || 8080;
var nodepath = 'node_modules/';
var assetspath = 'assets/';
// Starts a BrowerSync instance
gulp.task('server', ['build'], function(){
browser.init({server: './_site', port: port});
});
// Watch files for changes
gulp.task('watch', function() {
gulp.watch('scss/**/*', ['compile-scss', browser.reload]);
gulp.watch('sass/**/*', ['compile-sass', browser.reload]);
gulp.watch('js/**/*', ['copy-js', browser.reload]);
gulp.watch('images/**/*', ['copy-images', browser.reload]);
gulp.watch('html/pages/**/*', ['compile-html']);
gulp.watch(['html/{layouts,includes,helpers,data}/**/*'], ['compile-html:reset','compile-html']);
gulp.watch(['./src/{layouts,partials,helpers,data}/**/*'], [panini.refresh]);
});
// Erases the dist folder
gulp.task('reset', function() {
rimraf('bulma/*');
rimraf('scss/*');
rimraf('assets/css/*');
rimraf('assets/fonts/*');
rimraf('images/*');
});
// Erases the dist folder
gulp.task('clean', function() {
rimraf('_site');
});
// Copy Bulma filed into Bulma development folder
gulp.task('setupBulma', function() {
//Get Bulma from node modules
gulp.src([nodepath + 'bulma/*.sass']).pipe(gulp.dest('bulma/'));
gulp.src([nodepath + 'bulma/**/*.sass']).pipe(gulp.dest('bulma/'));
});
// Copy static assets
gulp.task('copy', function() {
//Copy other external font and data assets
gulp.src(['assets/fonts/**/*']).pipe(gulp.dest('_site/assets/fonts/'));
gulp.src([nodepath + 'slick-carousel/slick/fonts/**/*']).pipe(gulp.dest('_site/assets/css/fonts/'));
gulp.src([nodepath + 'slick-carousel/slick/ajax-loader.gif']).pipe(gulp.dest('_site/assets/css/'));
});
//Theme Sass variables
var sassOptions = {
errLogToConsole: true,
outputStyle: 'compressed',
includePaths: [nodepath + 'bulma/sass']
};
//Theme Scss variables
var scssOptions = {
errLogToConsole: true,
outputStyle: 'compressed',
includePaths: ['./scss/partials']
};
// Compile Bulma Sass
gulp.task('compile-sass', function () {
var processors = [
mq4HoverShim.postprocessorFor({ hoverSelectorPrefix: '.is-true-hover ' }),
autoprefixer({
browsers: [
"Chrome >= 45",
"Firefox ESR",
"Edge >= 12",
"Explorer >= 10",
"iOS >= 9",
"Safari >= 9",
"Android >= 4.4",
"Opera >= 30"
]
})//,
//cssnano(),
];
//Watch me get Sassy
return gulp.src('./bulma/bulma.sass')
.pipe(sourcemaps.init())
.pipe(sass(sassOptions).on('error', sass.logError))
.pipe(postcss(processors))
.pipe(sourcemaps.write())
.pipe(gulp.dest('./_site/assets/css/'));
});
// Compile Theme Scss
gulp.task('compile-scss', function () {
var processors = [
mq4HoverShim.postprocessorFor({ hoverSelectorPrefix: '.is-true-hover ' }),
autoprefixer({
browsers: [
"Chrome >= 45",
"Firefox ESR",
"Edge >= 12",
"Explorer >= 10",
"iOS >= 9",
"Safari >= 9",
"Android >= 4.4",
"Opera >= 30"
]
})//,
//cssnano(),
];
//Watch me get Sassy
return gulp.src('./scss/core.scss')
.pipe(sourcemaps.init())
.pipe(sass(sassOptions).on('error', sass.logError))
.pipe(postcss(processors))
.pipe(sourcemaps.write())
.pipe(gulp.dest('./_site/assets/css/'));
});
// Compile Html
gulp.task('compile-html', function() {
gulp.src('html/pages/**/*.html')
.pipe(panini({
root: 'html/pages/',
layouts: 'html/layouts/',
partials: 'html/includes/',
helpers: 'html/helpers/',
data: 'html/data/'
}))
.pipe(gulp.dest('_site'))
.on('finish', browser.reload);
});
gulp.task('compile-html:reset', function(done) {
panini.refresh();
done();
});
// Compile css from node modules
gulp.task('compile-css', function() {
return gulp.src([
nodepath + 'slick-carousel/slick/slick.css',
nodepath + 'slick-carousel/slick/slick-theme.css',
nodepath + 'wallop/css/wallop.css',
//Additional static css assets
assetspath + 'css/icons.min.css',
])
.pipe(concat('app.css'))
.pipe(gulp.dest('./_site/assets/css/'));
});
// Compile js from node modules
gulp.task('compile-js', function() {
return gulp.src([
nodepath + 'jquery/dist/jquery.min.js',
nodepath + 'slick-carousel/slick/slick.min.js',
nodepath + 'scrollreveal/dist/scrollreveal.min.js',
nodepath + 'waypoints/lib/jquery.waypoints.min.js',
nodepath + 'waypoints/lib/shortcuts/sticky.min.js',
nodepath + 'jquery.counterup/jquery.counterup.min.js',
nodepath + 'wallop/js/Wallop.min.js',
//Additional static js assets
assetspath + 'js/ggpopover/ggpopover.min.js',
assetspath + 'js/ggpopover/ggtooltip.js',
assetspath + 'js/embed/embed.js',
assetspath + 'js/gmap/gmap.min.js',
])
.pipe(concat('app.js'))
.pipe(gulp.dest('./_site/assets/js/'));
});
//Copy Theme js to production site
gulp.task('copy-js', function() {
gulp.src('js/**/*.js')
.pipe(gulp.dest('./_site/assets/js/'));
});
//Copy images to production site
gulp.task('copy-images', function() {
gulp.src('images/**/*')
.pipe(gulp.dest('./_site/assets/images/'));
});
gulp.task('init', ['setupBulma']);
gulp.task('build', ['clean','copy', 'compile-js', 'compile-css', 'copy-js', 'compile-sass', 'compile-scss', 'compile-html', 'copy-images']);
gulp.task('default', ['server', 'watch']);
sumber
Task must be specified
menjadiTask never defined
.Coba ganti baris terakhir gulpfile.js Anda
gulp.task('default', ['server', 'watch']);
dengan
gulp.task('default', gulp.series('server', 'watch'));
sumber
Turunkan versi gulp Anda di file package.json menjadi 3.9.1-
"gulp": "^3.9.1",
sumber
Anda tidak perlu menurunkan gulp dari gulp 4 . Gunakan gulp.series () untuk menggabungkan banyak tugas. Pada pemasangan pertama gulp secara global dengan
npm install --global gulp-cli
dan kemudian instal secara lokal di direktori kerja Anda dengan
npm install --save-dev gulp
lihat detailnya di sini
Contoh:
package.json
{ "name": "gulp-test", "version": "1.0.0", "description": "", "main": "index.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1" }, "author": "", "license": "ISC", "devDependencies": { "browser-sync": "^2.26.3", "gulp": "^4.0.0", "gulp-sass": "^4.0.2" }, "dependencies": { "bootstrap": "^4.3.1", "jquery": "^3.3.1", "popper.js": "^1.14.7" } }
gulpfile.js
var gulp = require("gulp"); var sass = require('gulp-sass'); var browserSync = require('browser-sync').create(); // Specific Task function js() { return gulp .src(['node_modules/bootstrap/dist/js/bootstrap.min.js', 'node_modules/jquery/dist/jquery.min.js', 'node_modules/popper.js/dist/umd/popper.min.js']) .pipe(gulp.dest('src/js')) .pipe(browserSync.stream()); } gulp.task(js); // Specific Task function gulpSass() { return gulp .src(['src/scss/*.scss']) .pipe(sass()) .pipe(gulp.dest('src/css')) .pipe(browserSync.stream()); } gulp.task(gulpSass); // Run multiple tasks gulp.task('start', gulp.series(js, gulpSass));
Jalankan
gulp start
untuk menjalankan beberapa tugas & menjalankangulp js
ataugulp gulpSass
untuk tugas tertentu.sumber
https://fettblog.eu/gulp-4-parallel-and-series/
Karena
gulp.task(name, deps, func)
digantikan olehgulp.task(name, gulp.{series|parallel}(deps, func))
.Anda menggunakan versi gulp terbaru tetapi kode yang lebih lama . Ubah kode atau downgrade.
sumber
Saya mendapatkan kesalahan yang sama saat menggunakan Gulp. Solusinya adalah dengan beralih ke Gulp versi 3.9.1, baik untuk versi lokal maupun versi CLI.
sudo npm install -g gulp@3.9.1
Jalankan di folder proyek
npm install gulp@3.9.1
sumber
Tidak baik untuk terus mengubah versi gulp & npm untuk memperbaiki kesalahan. Saya mendapatkan beberapa pengecualian hari terakhir setelah menginstal ulang mesin yang berfungsi. Dan membuang banyak menit untuk menginstal ulang & memperbaikinya.
Jadi, saya memutuskan untuk meningkatkan semua ke versi terbaru:
npm -v : v12.13.0 node -v : 6.13.0 gulp -v : CLI version: 2.2.0 Local version: 4.0.2
Kesalahan ini didapat karena bagaimana ia mengkodekan Anda gulpfile tetapi bukan versi yang tidak cocok. Jadi, Di sini Anda harus mengubah 2 hal di gulpfile agar selaras dengan Gulp versi 4. Gulp 4 telah mengubah cara memulai tugas daripada Versi 3.
Tapi di V4 seharusnya seperti ini:
function serve() { ... } gulp.task('serve', gulp.series(sass));
Namun di V4, seharusnya:
gulp.task('serve', gulp.series(sass));
sumber
Masalahnya adalah Anda menggunakan gulp 4 dan sintaks di gulfile.js adalah gulp 3. Jadi, turunkan gulp Anda ke 3.xx atau gunakan sintaks gulp 4.
Sintaksis Gulp 3:
gulp.task('default', ['sass'], function() {....} );
Sintaksis 4:
gulp.task('default', gulp.series(sass), function() {....} );
Anda dapat membaca lebih lanjut tentang tugas gulp dan gulp di: https://medium.com/@sudoanushil/how-to-write-gulp-tasks-ce1b1b7a7e81
sumber
Langkah:
sumber