Javascript Gulp文件错误:AssertionError[ERR_ASSERTION]:必须指定任务函数
我正在建立一个电视节目跟踪器。作为我项目的一部分,我已经为一个项目创建了一个Gulpfile,但是当我运行该文件时,我得到了以下错误Javascript Gulp文件错误:AssertionError[ERR_ASSERTION]:必须指定任务函数,javascript,node.js,sass,gulp,Javascript,Node.js,Sass,Gulp,我正在建立一个电视节目跟踪器。作为我项目的一部分,我已经为一个项目创建了一个Gulpfile,但是当我运行该文件时,我得到了以下错误 AssertionError [ERR_ASSERTION]: Task function must be specified at Gulp.set [as _setTask] (C:\Users\bdhef\Documents\codeprojects\antenna\node_modules\undertaker\lib\set-task.js:10
AssertionError [ERR_ASSERTION]: Task function must be specified
at Gulp.set [as _setTask] (C:\Users\bdhef\Documents\codeprojects\antenna\node_modules\undertaker\lib\set-task.js:10:3)
at Gulp.task (C:\Users\bdhef\Documents\codeprojects\antenna\node_modules\undertaker\lib\task.js:13:8)
at Object.<anonymous> (C:\Users\bdhef\Documents\codeprojects\antenna\gulpfile.js:16:6)
at Module._compile (internal/modules/cjs/loader.js:1063:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
at Module.load (internal/modules/cjs/loader.js:928:32)
at Function.Module._load (internal/modules/cjs/loader.js:769:14)
at Module.require (internal/modules/cjs/loader.js:952:19)
at require (internal/modules/cjs/helpers.js:88:18)
at requireOrImport (C:\Users\bdhef\AppData\Roaming\npm\node_modules\gulp\node_modules\gulp-cli\lib\shared\require-or-import.js:19:11) {
generatedMessage: false,
code: 'ERR_ASSERTION',
actual: false,
expected: true,
operator: '=='
}
以及目录结构
node_modules/
public/
fonts/
stylesheets/
vendor/
app.js
favicon.ico
index.html
gulpfile.js
package-lock.json
package.json
server.js
吞咽任务('default',吞咽序列('sass','watch')
node_modules/
public/
fonts/
stylesheets/
vendor/
app.js
favicon.ico
index.html
gulpfile.js
package-lock.json
package.json
server.js