断言错误 [ERR_ASSERTION]
AssertionError [ERR_ASSERTION]
我的 gulp 文件在 gulp 的最新更新中出现问题 4 我收到断言错误（AssertionError [ERR_ASSERTION]：任务函数必须被指定) 并且似乎（从谷歌搜索）与任务的定义方式有关，但不确定这里是否是这种情况以及需要更改的内容。
节点：节点-v
v14.16.0
命令行版本：2.3.0
本地版本：4.0.2
NPM：6.14.11
这是代码
// ### CSS processing pipeline
// Example
// ```
// gulp.src(cssFiles)
// .pipe(cssTasks('main.css')
// .pipe(gulp.dest(path.dist + 'styles'))
// ```
var cssTasks = function(filename) {
return lazypipe()
.pipe(function() {
return gulpif(!enabled.failStyleTask, plumber());
})
.pipe(function() {
return gulpif(enabled.maps, sourcemaps.init());
})
.pipe(function() {
return gulpif('*.less', less());
})
.pipe(function() {
return gulpif('*.scss', sass({
outputStyle: 'nested', // libsass doesn't support expanded yet
precision: 10,
includePaths: ['.'],
errLogToConsole: !enabled.failStyleTask
}));
})
.pipe(concat, filename)
.pipe(autoprefixer, {
browsers: [
'last 2 versions',
'android 4',
'opera 12'
]
})
.pipe(cssNano, {
safe: true
})
.pipe(function() {
return gulpif(enabled.rev, rev());
})
.pipe(function() {
return gulpif(enabled.maps, sourcemaps.write('.', {
sourceRoot: 'assets/styles/'
}));
})();
};
// ### JS processing pipeline
// Example
// ```
// gulp.src(jsFiles)
// .pipe(jsTasks('main.js')
// .pipe(gulp.dest(path.dist + 'scripts'))
// ```
var jsTasks = function(filename) {
return lazypipe()
.pipe(function() {
return gulpif(enabled.maps, sourcemaps.init());
})
.pipe(concat, filename)
.pipe(uglify, {
compress: {
'drop_debugger': enabled.stripJSDebug
}
})
.pipe(function() {
return gulpif(enabled.rev, rev());
})
.pipe(function() {
return gulpif(enabled.maps, sourcemaps.write('.', {
sourceRoot: 'assets/scripts/'
}));
})();
};
// ### Write to rev manifest
// If there are any revved files then write them to the rev manifest.
// See https://github.com/sindresorhus/gulp-rev
var writeToManifest = function(directory) {
return lazypipe()
.pipe(gulp.dest, path.dist + directory)
.pipe(browserSync.stream, {match: '**/*.{js,css}'})
.pipe(rev.manifest, revManifest, {
base: path.dist,
merge: true
})
.pipe(gulp.dest, path.dist)();
};
// ## Gulp tasks
// Run `gulp -T` for a task summary
// ### Styles
// `gulp styles` - Compiles, combines, and optimizes Bower CSS and project CSS.
// By default this task will only log a warning if a precompiler error is
// raised. If the `--production` flag is set: this task will fail outright.
gulp.task('styles', ['wiredep'], function() {
var merged = merge();
manifest.forEachDependency('css', function(dep) {
var cssTasksInstance = cssTasks(dep.name);
if (!enabled.failStyleTask) {
cssTasksInstance.on('error', function(err) {
console.error(err.message);
this.emit('end');
});
}
merged.add(gulp.src(dep.globs, {base: 'styles'})
.pipe(plumber({errorHandler: onError}))
.pipe(cssTasksInstance));
});
return merged
.pipe(writeToManifest('styles'));
});
// ### Scripts
// `gulp scripts` - Runs JSHint then compiles, combines, and optimizes Bower JS
// and project JS.
gulp.task('scripts', function() {
var merged = merge();
manifest.forEachDependency('js', function(dep) {
merged.add(
gulp.src(dep.globs, {base: 'scripts'})
.pipe(plumber({errorHandler: onError}))
.pipe(jsTasks(dep.name))
);
});
return merged
.pipe(writeToManifest('scripts'));
});
// ### Fonts
// `gulp fonts` - Grabs all the fonts and outputs them in a flattened directory
// structure. See: https://github.com/armed/gulp-flatten
gulp.task('fonts', function() {
return gulp.src(globs.fonts)
//.pipe(flatten())
.pipe(gulp.dest(path.dist + 'fonts'))
.pipe(browserSync.stream());
});
// ### Images
// `gulp images` - Run lossless compression on all the images.
gulp.task('images', function() {
return gulp.src(globs.images)
.pipe(imagemin([
imagemin.jpegtran({progressive: true}),
imagemin.gifsicle({interlaced: true}),
imagemin.svgo({plugins: [
{removeUnknownsAndDefaults: false},
{cleanupIDs: false}
]})
]))
.pipe(gulp.dest(path.dist + 'images'))
.pipe(browserSync.stream());
});
// ### JSHint
// `gulp jshint` - Lints configuration JSON and project JS.
gulp.task('jshint', function() {
return gulp.src([
'bower.json', 'gulpfile.js'
].concat(project.js))
.pipe(jshint())
.pipe(jshint.reporter('jshint-stylish'))
.pipe(gulpif(enabled.failJSHint, jshint.reporter('fail')));
});
// ### Clean
// `gulp clean` - Deletes the build folder entirely.
gulp.task('clean', require('del').bind(null, [path.dist]));
// ### Watch
// `gulp watch` - Use BrowserSync to proxy your dev server and synchronize code
// changes across devices. Specify the hostname of your dev server at
// `manifest.config.devUrl`. When a modification is made to an asset, run the
// build step for that asset and inject the changes into the page.
// See: http://www.browsersync.io
gulp.task('watch', function() {
browserSync.init({
files: ['{lib,templates}/**/*.php', '*.php'],
proxy: config.devUrl,
snippetOptions: {
whitelist: ['/wp-admin/admin-ajax.php'],
blacklist: ['/wp-admin/**']
}
});
gulp.watch([path.source + 'styles/**/*'], ['styles']);
gulp.watch([path.source + 'scripts/**/*'], ['scripts']);
gulp.watch([path.source + 'fonts/**/*'], ['fonts']);
gulp.watch([path.source + 'images/**/*'], ['images']);
gulp.watch(['bower.json', 'assets/manifest.json'], ['build']);
});
// ### Build
// `gulp build` - Run all the build tasks but don't clean up beforehand.
// Generally you should be running `gulp` instead of `gulp build`.
gulp.task('build', function(callback) {
runSequence('styles',
'scripts',
['fonts', 'images'],
callback);
});
// ### Wiredep
// `gulp wiredep` - Automatically inject Less and Sass Bower dependencies. See
// https://github.com/taptapship/wiredep
gulp.task('wiredep', function() {
var wiredep = require('wiredep').stream;
return gulp.src(project.css)
.pipe(wiredep())
.pipe(changed(path.source + 'styles', {
hasChanged: changed.compareSha1Digest
}))
.pipe(gulp.dest(path.source + 'styles'));
});
非常感谢任何帮助。
所以你的代码有一些问题。
gulp.task('styles', ['wiredep'], function() {
例如应该是
gulp.task('styles', gulp.series('wiredep', function() {等
gulp.task 只需要三个参数。您的代码中可能有更多这样的地方。
gulp.watch([path.source + 'styles/**/*'], ['styles']); 实际上可能没问题，但我们要小心，让它更适合未来：
gulp.watch([path.source + 'styles/**/*'], gulp.series('styles'));
等在你的 watch 任务中更改所有这些。
有了 gulp.series 和 gulp.parallel，您不再需要像 runSequence 这样的东西。所以替换
gulp.task('build', function(callback) {
runSequence('styles',
'scripts',
['fonts', 'images'],
callback);
});
与
gulp.task('build', gulp.series(
'styles',
'scripts',
gulp.parallel('fonts', 'images')
// callback); // see below
);
Make these changes and you'll see if you need the `callback` in the `build` task - if you get a message about signaling async completion.
-----------
And you may have to move your `wiredep` task before your `styles` task. Since you are using `gulp.task` rather than functions to create your tasks, you cannot refer to a task that hasn't been created yet. That wouldn't be an issue if you used all named functions to create each task.
我的 gulp 文件在 gulp 的最新更新中出现问题 4 我收到断言错误（AssertionError [ERR_ASSERTION]：任务函数必须被指定) 并且似乎（从谷歌搜索）与任务的定义方式有关，但不确定这里是否是这种情况以及需要更改的内容。 节点：节点-v v14.16.0
命令行版本：2.3.0 本地版本：4.0.2
NPM：6.14.11 这是代码
// ### CSS processing pipeline
// Example
// ```
// gulp.src(cssFiles)
// .pipe(cssTasks('main.css')
// .pipe(gulp.dest(path.dist + 'styles'))
// ```
var cssTasks = function(filename) {
return lazypipe()
.pipe(function() {
return gulpif(!enabled.failStyleTask, plumber());
})
.pipe(function() {
return gulpif(enabled.maps, sourcemaps.init());
})
.pipe(function() {
return gulpif('*.less', less());
})
.pipe(function() {
return gulpif('*.scss', sass({
outputStyle: 'nested', // libsass doesn't support expanded yet
precision: 10,
includePaths: ['.'],
errLogToConsole: !enabled.failStyleTask
}));
})
.pipe(concat, filename)
.pipe(autoprefixer, {
browsers: [
'last 2 versions',
'android 4',
'opera 12'
]
})
.pipe(cssNano, {
safe: true
})
.pipe(function() {
return gulpif(enabled.rev, rev());
})
.pipe(function() {
return gulpif(enabled.maps, sourcemaps.write('.', {
sourceRoot: 'assets/styles/'
}));
})();
};
// ### JS processing pipeline
// Example
// ```
// gulp.src(jsFiles)
// .pipe(jsTasks('main.js')
// .pipe(gulp.dest(path.dist + 'scripts'))
// ```
var jsTasks = function(filename) {
return lazypipe()
.pipe(function() {
return gulpif(enabled.maps, sourcemaps.init());
})
.pipe(concat, filename)
.pipe(uglify, {
compress: {
'drop_debugger': enabled.stripJSDebug
}
})
.pipe(function() {
return gulpif(enabled.rev, rev());
})
.pipe(function() {
return gulpif(enabled.maps, sourcemaps.write('.', {
sourceRoot: 'assets/scripts/'
}));
})();
};
// ### Write to rev manifest
// If there are any revved files then write them to the rev manifest.
// See https://github.com/sindresorhus/gulp-rev
var writeToManifest = function(directory) {
return lazypipe()
.pipe(gulp.dest, path.dist + directory)
.pipe(browserSync.stream, {match: '**/*.{js,css}'})
.pipe(rev.manifest, revManifest, {
base: path.dist,
merge: true
})
.pipe(gulp.dest, path.dist)();
};
// ## Gulp tasks
// Run `gulp -T` for a task summary
// ### Styles
// `gulp styles` - Compiles, combines, and optimizes Bower CSS and project CSS.
// By default this task will only log a warning if a precompiler error is
// raised. If the `--production` flag is set: this task will fail outright.
gulp.task('styles', ['wiredep'], function() {
var merged = merge();
manifest.forEachDependency('css', function(dep) {
var cssTasksInstance = cssTasks(dep.name);
if (!enabled.failStyleTask) {
cssTasksInstance.on('error', function(err) {
console.error(err.message);
this.emit('end');
});
}
merged.add(gulp.src(dep.globs, {base: 'styles'})
.pipe(plumber({errorHandler: onError}))
.pipe(cssTasksInstance));
});
return merged
.pipe(writeToManifest('styles'));
});
// ### Scripts
// `gulp scripts` - Runs JSHint then compiles, combines, and optimizes Bower JS
// and project JS.
gulp.task('scripts', function() {
var merged = merge();
manifest.forEachDependency('js', function(dep) {
merged.add(
gulp.src(dep.globs, {base: 'scripts'})
.pipe(plumber({errorHandler: onError}))
.pipe(jsTasks(dep.name))
);
});
return merged
.pipe(writeToManifest('scripts'));
});
// ### Fonts
// `gulp fonts` - Grabs all the fonts and outputs them in a flattened directory
// structure. See: https://github.com/armed/gulp-flatten
gulp.task('fonts', function() {
return gulp.src(globs.fonts)
//.pipe(flatten())
.pipe(gulp.dest(path.dist + 'fonts'))
.pipe(browserSync.stream());
});
// ### Images
// `gulp images` - Run lossless compression on all the images.
gulp.task('images', function() {
return gulp.src(globs.images)
.pipe(imagemin([
imagemin.jpegtran({progressive: true}),
imagemin.gifsicle({interlaced: true}),
imagemin.svgo({plugins: [
{removeUnknownsAndDefaults: false},
{cleanupIDs: false}
]})
]))
.pipe(gulp.dest(path.dist + 'images'))
.pipe(browserSync.stream());
});
// ### JSHint
// `gulp jshint` - Lints configuration JSON and project JS.
gulp.task('jshint', function() {
return gulp.src([
'bower.json', 'gulpfile.js'
].concat(project.js))
.pipe(jshint())
.pipe(jshint.reporter('jshint-stylish'))
.pipe(gulpif(enabled.failJSHint, jshint.reporter('fail')));
});
// ### Clean
// `gulp clean` - Deletes the build folder entirely.
gulp.task('clean', require('del').bind(null, [path.dist]));
// ### Watch
// `gulp watch` - Use BrowserSync to proxy your dev server and synchronize code
// changes across devices. Specify the hostname of your dev server at
// `manifest.config.devUrl`. When a modification is made to an asset, run the
// build step for that asset and inject the changes into the page.
// See: http://www.browsersync.io
gulp.task('watch', function() {
browserSync.init({
files: ['{lib,templates}/**/*.php', '*.php'],
proxy: config.devUrl,
snippetOptions: {
whitelist: ['/wp-admin/admin-ajax.php'],
blacklist: ['/wp-admin/**']
}
});
gulp.watch([path.source + 'styles/**/*'], ['styles']);
gulp.watch([path.source + 'scripts/**/*'], ['scripts']);
gulp.watch([path.source + 'fonts/**/*'], ['fonts']);
gulp.watch([path.source + 'images/**/*'], ['images']);
gulp.watch(['bower.json', 'assets/manifest.json'], ['build']);
});
// ### Build
// `gulp build` - Run all the build tasks but don't clean up beforehand.
// Generally you should be running `gulp` instead of `gulp build`.
gulp.task('build', function(callback) {
runSequence('styles',
'scripts',
['fonts', 'images'],
callback);
});
// ### Wiredep
// `gulp wiredep` - Automatically inject Less and Sass Bower dependencies. See
// https://github.com/taptapship/wiredep
gulp.task('wiredep', function() {
var wiredep = require('wiredep').stream;
return gulp.src(project.css)
.pipe(wiredep())
.pipe(changed(path.source + 'styles', {
hasChanged: changed.compareSha1Digest
}))
.pipe(gulp.dest(path.source + 'styles'));
});
非常感谢任何帮助。
所以你的代码有一些问题。
gulp.task('styles', ['wiredep'], function() {
例如应该是
gulp.task('styles', gulp.series('wiredep', function() {等
gulp.task 只需要三个参数。您的代码中可能有更多这样的地方。
gulp.watch([path.source + 'styles/**/*'], ['styles']); 实际上可能没问题，但我们要小心，让它更适合未来：
gulp.watch([path.source + 'styles/**/*'], gulp.series('styles'));
等在你的 watch 任务中更改所有这些。
有了 gulp.series 和 gulp.parallel，您不再需要像 runSequence 这样的东西。所以替换
gulp.task('build', function(callback) {
runSequence('styles',
'scripts',
['fonts', 'images'],
callback);
});
与
gulp.task('build', gulp.series(
'styles',
'scripts',
gulp.parallel('fonts', 'images')
// callback); // see below
);
Make these changes and you'll see if you need the `callback` in the `build` task - if you get a message about signaling async completion.
-----------
And you may have to move your `wiredep` task before your `styles` task. Since you are using `gulp.task` rather than functions to create your tasks, you cannot refer to a task that hasn't been created yet. That wouldn't be an issue if you used all named functions to create each task.