Visual Studio任务运行程序无法加载gulp文件。我现在使用VS2017 v15.9.4,但是,该项目是几年前开发的。

Failed to run "...\Gulpfile.js"...
cmd.exe /c gulp --tasks-simple
assert.js:350
    throw err;
    ^
AssertionError [ERR_ASSERTION]: Task function must be specified
    at Gulp.set [as _setTask] (...\node_modules\undertaker\lib\set-task.js:10:3)
    at Gulp.task (...\node_modules\undertaker\lib\task.js:13:8)
    at Object.<anonymous> (...\gulpfile.js:34:6)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)

我将项目的本地地址替换为“...”
npm -v --> 6.4.1

node -v --> 10.14.2

gulp -v --> CLI version 2.0.1
            Local version 4.0.0

package.json 文件的内容:
{
  "version": "1.0.0",
  "name": "tratic",
  "private": true,
  "devDependencies": {
    "gulp": "github:gulpjs/gulp#4.0",
    "gulp-clean-css": "3.5.0",
    "gulp-concat": "2.6.1",
    "gulp-durandal": "1.1.7",
    "gulp-install": "^1.1.0",
    "gulp-uglify": "3.0.0",
    "gulp-util": "3.0.8",
    "rimraf": "2.6.1"
  },
  "dependencies": {
    "assert": "^1.4.1",
    "assert-js": "^0.20.0",
    "natives": "^1.1.5"
  },
  "scripts": {
    "gulp": "./node_modules/gulp/bin/gulp.js"
  }
}

gulpfile.js 的内容:
var gulp = require('gulp'),
    durandal = require('gulp-durandal'),
    rimraf = require('rimraf');

gulp.task('clean', function (cb) {
    rimraf('app/main-built.js', cb);
});

gulp.task('durandal', ['clean'], function () {
    durandal({
        baseDir: 'app',
        main: 'main.js',
        output: 'main-built.js',
        almond: true,
        minify: true
    })
    .pipe(gulp.dest('app'));
});

gulp.task('default', ['durandal']);

我用谷歌搜索,现有的解决方案无法解决问题。有一些相关问题,但对我不起作用。

我该如何解决这个问题?

最佳答案

我已经尝试过您的设置,它确实引发了像您一样的错误。
我去了gulp docs并尝试了他们的gulpfile版本,它没有任何问题。因此,我重写了您的gulpfile以匹配他们的示例,并且效果很好。
这是代码:


    var gulp = require('gulp'),
        durandal = require('gulp-durandal'),
        rimraf = require('rimraf');

    var paths = {
        app: "./App/**/*.js",
        js: "./Scripts/**/*.js",
        css: "./Content/**/*.css",
        concatJsDest: "./Scripts/vendor-scripts.min.js",
        concatCssDest: "./Content/vendor-css.min.css"
    };

    function clean (cb) {
      rimraf('app/main-built.js', cb);
    }

    gulp.task('clean', clean);

    function runDurandal () {
      return durandal({
          baseDir: 'app',
          main: 'main.js',
          output: 'main-built.js',
          almond: true,
          minify: true,
          rjsConfigAdapter: function (rjsConfig) {
              rjsConfig.deps = ['text'];
              return rjsConfig;
          }
      })
      .pipe(gulp.dest('app'));
    }

    var build = gulp.series(clean, runDurandal);

    gulp.task('default', build);


基本上,我已经将用作任务的函数移到了变量上,并使用系列来运行durandal。

然后我尝试了npx gulp --tasks-simple并有适当的输出
clean
default

顺便说一句,看看npx,所以您不必全局安装gulp。

希望能有所帮助!

关于javascript - Gulpfile.js加载失败,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/53860173/

10-09 14:22