Npm Error while installing Frappe bench

[radhika.g]

Hello I am facing below issue while installing frappe-bench.I have tried all the possible ways by removing npm,nodejs and again installing it.
Also when i tried npm -v it is showing the version installed.
Kindly assist.
The following packages have unmet dependencies:
npm : Depends: nodejs but it is not going to be installed
Depends: node-abbrev (>= 1.0.4) but it is not going to be installed
Depends: node-ansi but it is not going to be installed
Depends: node-archy but it is not going to be installed
Depends: node-block-stream but it is not going to be installed
Depends: node-fstream (>= 0.1.22) but it is not going to be installed
Depends: node-fstream-ignore but it is not going to be installed
Depends: node-github-url-from-git but it is not going to be installed
Depends: node-glob (>= 3.1.21) but it is not going to be installed
Depends: node-graceful-fs (>= 2.0.0) but it is not going to be installed
Depends: node-inherits but it is not going to be installed
Depends: node-ini (>= 1.1.0) but it is not going to be installed
Depends: node-lockfile but it is not going to be installed
Depends: node-lru-cache (>= 2.3.0) but it is not going to be installed
Depends: node-minimatch (>= 0.2.11) but it is not going to be installed
Depends: node-mkdirp (>= 0.3.3) but it is not going to be installed
Depends: node-gyp (>= 0.10.9) but it is not going to be installed
Depends: node-nopt (>= 2.1.1) but it is not going to be installed
Depends: node-npmlog but it is not going to be installed
Depends: node-once but it is not going to be installed
Depends: node-osenv but it is not going to be installed
Depends: node-read but it is not going to be installed
Depends: node-read-package-json (>= 1.1.0) but it is not going to be installed
Depends: node-request (>= 2.25.0) but it is not going to be installed
Depends: node-retry but it is not going to be installed
Depends: node-rimraf (>= 2.2.2) but it is not going to be installed
Depends: node-semver (>= 2.1.0) but it is not going to be installed
Depends: node-sha but it is not going to be installed
Depends: node-slide but it is not going to be installed
Depends: node-tar (>= 0.1.18) but it is not going to be installed
Depends: node-which but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

[trentmu]

Unable to correct problems, you have held broken packages.

sudo apt-get autoremove
sudo apt-get autoclean

then retry the npm/nodejs installs

[arokia]

Make a last try of removing the npm and nodejs.

bench.utils.CommandFailedError: npm install

sudo apt-get update sudo apt-get install nodejs sudo apt-get install npm nodejs -v cd ~ curl -sL https://deb.nodesource.com/setup_8.x -o nodesource_setup.sh nano nodesource_setup.sh sudo bash nodesource_setup.sh sudo apt-get install nodejs nodejs -v npm -v sudo apt-get install build-essential Kindly purge the existing npm and follow the above steps, Use this code for installing npm .

Follow the steps in link.