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[英]how can i solve this error 'The following tasks did not complete: default, Did you forget to signal async completion? '
[英]Gulp Error: "The following tasks did not complete; Did you forget to signal async completion"
我嘗試在我擁有gulpfile.js
的項目目錄中的終端上運行gulp
命令,但出現錯誤, The following tasks did not complete: default, gulpSass; Did you forget to signal async completion
The following tasks did not complete: default, gulpSass; Did you forget to signal async completion
,我嘗試尋找解決方案但無濟於事。
我檢查了我面臨問題的一些可能原因並實施了一些,但我仍然不斷收到錯誤。
我嘗試過的一種可能的解決方法是在所有函數中使用async await
,但它並沒有解決問題。
這是我的gulpfile.js
var gulp = require('gulp'),
sass = require('gulp-sass'),
plumber = require('gulp-plumber'),
notify = require('gulp-notify'),
livereload = require('gulp-livereload')
concat = require('gulp-concat'),
uglify = require('gulp-uglify'),
// Concat all js into one script
async function js ( cb ) {
return await gulp.src(['./assets/js/lib/*.js','./assets/js/scripts/**/*.js'])
.pipe(plumber(plumberErrorHandler))
//.pipe(jshint())
//.pipe(jshint.reporter('jshint-stylish'))
.pipe(sourcemaps.init())
.pipe(concat('scripts.min.js'))
.pipe(uglify())
.pipe(sourcemaps.write('../maps/'))
.pipe(gulp.dest('./assets/js'))
.pipe(livereload());
cb();
}
// Sass compiler + Maps
async function sass ( cb ) {
return await gulp.src('./assets/scss/*.scss')
.pipe(plumber(plumberErrorHandler))
.pipe(sassGlob())
.pipe(sourcemaps.init())
.pipe(sass({outputStyle: 'development'}))
//.pipe(autoprefixer({
// browsers: ['>1%'],
//remove: false
//}))
.pipe(sourcemaps.write('./assets/maps'))
.pipe(gulp.dest('.'))
.pipe(livereload());
cb();
}
// Watch for changes
async function watch ( cb ) {
livereload.listen();
return await gulp.watch('./assets/scss/**/*', ['sass']);
return await gulp.watch('./assets/js/lib/**/*.js', ['js']);
return await gulp.watch('./assets/js/scripts/**/*.js', ['js']);
return await gulp.watch('./**/*.php').on('change', async function(file) {
livereload.changed(file.path);
});
cb();
}
// Error handling/reporting
var plumberErrorHandler = {
errorHandler: notify.onError({
title: 'Gulp',
message: 'Error: <%= error.message %>'
})
}
// Default
exports.default = gulp.series(js, sass, watch);
gulp.src
和.pipe
確實異步運行,但他們不使用 promise Z8A5DA52E 不能使用 await 。 相反,您可以按原樣返回它們,gulp 將處理等待。 由於 gulp 處理它,您也不需要在完成時調用cb()
。
您還在watch()
中返回四次,但這會導致最后三個不運行。 相反,您可以使用parallel
(因為 watch 永遠運行意味着最后三個永遠不會與series
一起運行)。
var gulp = require('gulp'),
sass = require('gulp-sass'),
plumber = require('gulp-plumber'),
notify = require('gulp-notify'),
livereload = require('gulp-livereload')
concat = require('gulp-concat'),
uglify = require('gulp-uglify'),
// Concat all js into one script
function js ( cb ) {
return gulp.src(['./assets/js/lib/*.js','./assets/js/scripts/**/*.js'])
.pipe(plumber(plumberErrorHandler))
//.pipe(jshint())
//.pipe(jshint.reporter('jshint-stylish'))
.pipe(sourcemaps.init())
.pipe(concat('scripts.min.js'))
.pipe(uglify())
.pipe(sourcemaps.write('../maps/'))
.pipe(gulp.dest('./assets/js'))
.pipe(livereload());
}
// Sass compiler + Maps
function sass ( cb ) {
return gulp.src('./assets/scss/*.scss')
.pipe(plumber(plumberErrorHandler))
.pipe(sassGlob())
.pipe(sourcemaps.init())
.pipe(sass({outputStyle: 'development'}))
//.pipe(autoprefixer({
// browsers: ['>1%'],
//remove: false
//}))
.pipe(sourcemaps.write('./assets/maps'))
.pipe(gulp.dest('.'))
.pipe(livereload());
}
// Watch for changes
function watch ( cb ) {
livereload.listen();
return gulp.parallel(
gulp.watch('./assets/scss/**/*', ['sass']),
gulp.watch('./assets/js/lib/**/*.js', ['js']),
gulp.watch('./assets/js/scripts/**/*.js', ['js']),
gulp.watch('./**/*.php').on('change', function(file) {
livereload.changed(file.path);
})
);
}
// Error handling/reporting
var plumberErrorHandler = {
errorHandler: notify.onError({
title: 'Gulp',
message: 'Error: <%= error.message %>'
})
}
// Default
exports.default = gulp.series(js, sass, watch);
首先,您的錯誤消息The following tasks did not complete: default, gulpSass;
但是您的代碼中沒有gulpSass
任務,因此您在將其復制到此處之前進行了更改。
其次,這種語法很舊:
return await gulp.watch('./assets/scss/**/*', ['sass']);
改用這個:
gulp.watch('./assets/scss/**/*', sass);
You are using the function name form of tasks not the gulp.task('sass')
syntax, so in the watch calls you use the function name sass
but not as a string 'sass'
.
在您的watch
任務中進行此更改。
而且我會擺脫return await
- 這可能是一個問題。
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