Can't get Gulp to run: cannot find module 'gulp-util'

On Windows 7, I've installed gulp as explained here: http://markgoodyear.com/2014/01/getting-started-with-gulp/:

npm install gulp -g
In my app folder: npm install gulp --save-dev
I create a gulpfile.js file.

But then, when I try to run gulp, I get this error message:

module.js:340
throw err;
      ^
Error: cannot file module 'gulp-util'
at Function.Module._resolveFilename (module.js:338:15)

etc.

But gulp-util is present (in the local app folder) in:

node_modules
    gulp
        node_modules
            gulp-util

Any idea what may be the cause?

Solution 1:

UPDATE

From later versions, there is no need to manually install gulp-util.

Check the new getting started page.

If you still hit this problem try reinstalling your project's local packages:

rm -rf node_modules/
npm install

OUTDATED ANSWER

You also need to install gulp-util:

 npm install gulp-util --save-dev

From gulp docs- getting started (3.5):

Install gulp and gulp-util in your project devDependencies

Solution 2:

If you have a package.json, you can install all the current project dependencies using:

npm install

Solution 3:

Any answer didn't help in my case. What eventually helped was removing bower and gulp (I use both of them in my project):

npm remove -g bower
npm remove -g gulp

After that I installed them again:

npm install -g bower
npm install -g gulp

Now it works just fine.

Solution 4:

Linux Ubuntu 18:04 user here. I tried all the solutions on this board to date. Even though I read above in the accepted answer that "From later versions, there is no need to manually install gulp-util.", it was the thing that worked for me. (...maybe bc I'm on Ubuntu? I don't know. )

To recap, I kept getting the "cannot find module 'gulp-util'" error when just checking to see if gulp was installed by running:

gulp --version

...again, the 'gulp-util' error kept appearing...

So, I followed the npm install [package name] advice listed above, but ended up getting several other packages that needed to be installed as well. And one had a issue of already existing, and i wasn't sure how to replace it. ...I will put all the packages/install commands that I had to use here, just as reference in case someone else experiences this problem:

sudo npm install -g gulp-util

(then I got an error for 'pretty-hrtime' so I added that, and then the others as Error: Cannot find module ___ kept popping up after each gulp --version check. ...so I just kept installing each one.)

sudo npm install -g pretty-hrtime
sudo npm install -g chalk
sudo npm install -g semver --force

(without --force, on my system I got an error: "EEXIST: file already exists, symlink". --force is not recommended, but idk any other way. )

sudo npm install -g archy
sudo npm install -g liftoff
sudo npm install -g tildify
sudo npm install -g interpret
sudo npm install -g v8flags
sudo npm install -g minimist

And now gulp --version is finally showing: CLI version 3.9.1 Local version 3.9.1