Gulp 降级后无法使用

Question

安装 gulp#4（gulp npm install 'gulpjs/gulp.git#4.0' --save-dev 的下一个版本）后，我进行了几次测试并最终进入了最新版本，但控制台一直在向我打印以下输出 AssertionError [ERR_ASSERTION]: Task function must be specified 我尝试了几种方法，例如更改分支、删除 node_modules 和安装不同的 gulp 版本，例如 gulp@3 但 none 工作

$ npm run watch

> cx-content-extractor@0.0.1 watch /Users/alevale/work/CLIENT
> gulp watch

assert.js:60
  throw new errors.AssertionError({
  ^

AssertionError [ERR_ASSERTION]: Task function must be specified
    at Gulp.set [as _setTask] (/Users/alevale/work/CLIENT/node_modules/undertaker/lib/set-task.js:10:3)
    at Gulp.task (/Users/alevale/work/CLIENT/node_modules/undertaker/lib/task.js:13:8)
    at /Users/alevale/work/CLIENT/gulpfile.js:43:10
    at Object.<anonymous> (/Users/alevale/work/CLIENT/gulpfile.js:168:3)
    at Module._compile (module.js:569:30)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:503:32)
    at tryModuleLoad (module.js:466:12)
    at Function.Module._load (module.js:458:3)
    at Module.require (module.js:513:17)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! cx-content-extractor@0.0.1 watch: `gulp watch`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the cx-content-extractor@0.0.1 watch script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/alevale/.npm/_logs/2017-07-20T12_28_19_935Z-debug.log

Answer 1

想分享我的愚蠢错误^^

经过几次尝试后，我所做的更改似乎已保存在 package-lock.json 中，而我在 "clean state"[=11= 中获取环境时也忘记删除该文件]

Gulp 降级后无法使用

Gulp not working after downgrade

javascript

gulp

downgrade