When I run Grunt, I receive the following message: Local npm module "grunt-contrib-copy" not found. Is it installed?

Question

I have been trying to install Grunt. When I run grunt I receive the following list of messages and warnings:

Local Npm module "grunt-contrib-copy" not found.  Is it installed?
Local Npm module "grunt-contrib-uglify" not found.  Is it installed?
Local Npm module "grunt-contrib-jshint" not found.  Is it installed?
Local Npm module "grunt-contrib-less" not found.  Is it installed?
Local Npm module "grunt-contrib-clean" not found.  Is it installed?
Local Npm module "grunt-contrib-watch" not found.  Is it installed?
Local Npm module "grunt-contrib-concurrent" not found.  Is it installed?
Local Npm module "grunt-contrib-nodemon" not found.  Is it installed?
Local Npm module "grunt-contrib-newer" not found.  Is it installed?
Warning: Task "copy:vendor" not found. Use --force to continue.
Aborted due to warnings.

I have tried "npm install", "npm install grunt --save-dev", "grunt init:node". to fix the problem; it didn't work. Can anyone help? Thanks.

Answer 1

It seems that you don't have loaded the modules in the Gruntfile.js or you haven't installed all the modules. Try npm install <module-name> --save-dev for all the modules.