处理 gulp 文件时我无法摆脱这个问题 TypeError: Cannot read properties of undefined (reading 'pipe')

Question

I am trying to setup my gulpfile for future projects and on the firt stage bumped into a problem that accompanies me no matter what do I do with my code: Here it is :

"TypeError: Cannot read properties of undefined (reading 'pipe')
    at pipe (D:\HTML\NodeJs\Gulp\src\node_modules\pump\index.js:56:15)
    at Array.reduce (D:\HTML\NodeJs\Gulp\src\node_modules\ometa\lib.js:101:9)
    at pump (D:\HTML\NodeJs\Gulp\src\node_modules\pump\index.js:79:11)
    at Pumpify.setPipeline (D:\HTML\NodeJs\Gulp\src\node_modules\pumpify\index.js:39:5)
    at new Pumpify (D:\HTML\NodeJs\Gulp\src\node_modules\pumpify\index.js:15:30)
    at Function.Pumpify [as obj] (D:\HTML\NodeJs\Gulp\src\node_modules\pumpify\index.js:13:44)
    at globStream (D:\HTML\NodeJs\Gulp\src\node_modules\glob-stream\index.js:73:18)
    at Gulp.src (D:\HTML\NodeJs\Gulp\src\node_modules\vinyl-fs\lib\src\index.js:24:5)
    at operationsWithJsFiles (D:\HTML\NodeJs\Gulp\src\gulpfile.js:23:12)
    at bound (node:domain:421:15)"

My code:

// Importing gulp modules
let {Gulp,parallel,dest,series,src, tree} = require('gulp')

let cleanCss = require('clean-css')

let uglify = require('gulp-uglify')


let scss = require('gulp-scss')(require('scss'))

let concat = require('gulp-concat')

let autoprefixer = require('gulp-autoprefixer')

let path = require('path')

let rename = require('gulp-rename')

// Minimizing js files

function operationsWithJsFiles(){

    return src('js/*.js',[{allowEmpty:true}])
    .pipe(uglify())
    .pipe(rename({
        extname:'.min.js'
    }))
    .pipe(concat('AllJs.js'))
    .pipe(dest('../Dist'))
}



// Minimizing scss files

function operationsWithScssFiles(){

    return src('scss/*.scss')
    .pipe(scss())
    .pipe(autoprefixer({
        cascade:false
    }))
    .pipe(rename({
        extname:'.min.css'
    }))
    .pipe(concat('AllCss.css'))
    .pipe(dest('../Dist'))
}

exports.default = parallel(operationsWithJsFiles,operationsWithScssFiles)

Ps: I checked my directories properly, so, I believe, gulp has no issues with finding files Pps: My directory path may look confusing and hilarious xD

Answer 1

Change this line:

return src('js/*.js',[{allowEmpty:true}])

to

return src('js/*.js',{allowEmpty:true})

You may have been confused by

src(globs, [options])

in the documentation, gulp.src signature

But the enclosing [] in the signature only indicate that that parameter is optional . The options don't actually go into the brackets. So options is just a {} object.