当我在终端中运行“gulp”时，为什么会出现：“错误：找不到模块 sass”？

Question

I'm trying to run a gulp task but when I go to Terminal > Run Task... > gulp it says No gulp task found . I run gulp in the terminal and I get the title's error.

---

which sass : /home/username/.nvm/versions/node/v17.4.0/bin/sass .

which node : /home/username/.nvm/versions/node/v17.4.0/bin/node .

which gulp : /home/username/.nvm/versions/node/v17.4.0/bin/gulp .

Gulp version:

CLI version: 2.3.0
Local version: 4.0.2

Gulp sass version: ^5.1.0 .

My gulpfile.js ; is in the root folder (as my styles.scss , styles.css , styles.min.css , package.json , package-lock.json and node_modules/ ), with the code:

// Sass configuration
var gulp = require('gulp');
var sass = require('gulp-sass')(require('sass'));

gulp.task('sass', function(cb) {
  gulp
    .src('*.scss')
    .pipe(sass())
    .pipe(
      gulp.dest(function(f) {
        return f.base;
      })
    );
  cb();
});

gulp.task(
  'default',
  gulp.series('sass', function(cb) {
    gulp.watch('*.scss', gulp.series('sass'));
    cb();
  })
);

---

I removed and re-installed gulp and gulp-sass but the result is the same.

I'm following these steps .

Answer 1

I fixed the problem by adding npm i --save-dev sass .