我试图让这个简单的网站与React和Gulp一起使用，但是收到错误：＆＃34; TypeError：dest.on不是函数＆＃34;在终端。不知道如何解决这个问题？有任何想法吗？谢谢你的帮助。
Gulp文件：
// packages
const gulp = require('gulp'),
babel = require('gulp-babel'),
sourcemaps = require('gulp-sourcemaps');
concat = require('concat');
// build all the JavaScript things
gulp.task('default', function() {
var src = [
'./src/script/*.js',
'./src/components/*.jsx'
];
return gulp.src(src)
.pipe(sourcemaps.init())
.pipe(babel({
presets: [
'es2015',
'react'
]
}))
.pipe(concat('dw.js'))
.pipe(gulp.dest('./dist/script'));
});
以下是我在终端中看到的错误：
$ gulp
[14:17:30] Requiring external module babel-core/register
[14:17:30] Using gulpfile ~/Dropbox/mashydesign/designSite/gulp test 3/gulpfile.babel.js
[14:17:30] Starting 'default'...
[14:17:30] 'default' errored after 18 ms
[14:17:30] TypeError: dest.on is not a function
at DestroyableTransform.Readable.pipe (/Users/MM2887/Dropbox/mashydesign/designSite/gulp test 3/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:557:8)
at Gulp.<anonymous> (/Users/MM2887/Dropbox/mashydesign/designSite/gulp test 3/gulpfile.babel.js:21:6)
at module.exports (/Users/MM2887/Dropbox/mashydesign/designSite/gulp test 3/node_modules/orchestrator/lib/runTask.js:34:7)
at Gulp.Orchestrator._runTask (/Users/MM2887/Dropbox/mashydesign/designSite/gulp test 3/node_modules/orchestrator/index.js:273:3)
at Gulp.Orchestrator._runStep (/Users/MM2887/Dropbox/mashydesign/designSite/gulp test 3/node_modules/orchestrator/index.js:214:10)
at Gulp.Orchestrator.start (/Users/MM2887/Dropbox/mashydesign/designSite/gulp test 3/node_modules/orchestrator/index.js:134:8)
at /usr/local/lib/node_modules/gulp/bin/gulp.js:129:20
at _combinedTickCallback (internal/process/next_tick.js:73:7)
at process._tickCallback (internal/process/next_tick.js:104:9)
at Module.runMain (module.js:606:11) /Users/MM2887/Dropbox/mashydesign/designSite/gulp test 3/node_modules/concat/index.js:17
const fileList = files.map(f => path_1.join(folder, f));
^
TypeError: Cannot read property 'map' of undefined