Error: Cannot find module 'gulp-util'

[cdll]

here s my task below:

let prelink= require('gulp-pre-link')
gulp.task('prelink', ()=>{
  return gulp.src('src/*.html)
  .pipe(prelink({}))
  .pipe(gulp.dest('build/'))
})

but is there any dependences that was dismissed caused i got an error msg like:

module.js:339
    throw err;
    ^

Error: Cannot find module 'gulp-util'
    at Function.Module._resolveFilename (module.js:337:15)
    at Function.Module._load (module.js:287:25)
    at Module.require (module.js:366:17)
    at require (module.js:385:17)

could u help with it~

[openks]

from the msg 'gulp-util' is depended ,i will check other dependences on monday，sorry about that!

[cdll]

that will be nice and thanks for the reply~now i manualy had 'gulp-util' package installed and the task run into work but i had another problem here.