Can't install express ubuntu

Question

I have tried any ways I can but still can't install express successfully. I used

sudo npm install -g express-generator
sudo npm install -g express

The terminal shows

 /usr/bin/express -> /usr/lib/node_modules/express-generator/bin/express
 express-generator@4.13.1 /usr/lib/node_modules/express-generator
 ├── sorted-object@1.0.0
 ├── commander@2.7.1 (graceful-readlink@1.0.1)
 └── mkdirp@0.5.1 (minimist@0.0.8)

But when I input express, it still says "command not find". I also added the path"/usr/lib/node_modules/express-generator/bin" in system path, it still failed.

I stuck this problem for two days, it's quite annoying. Please help me.

Answer 1

Try $ sudo npm cache clean and then install express and express-generator without sudo.