Whenever I need to use NodeJS I'm always tired of a bunch of problems.
At the moment I need to use closurecompiler nodejs module and try to install it and nodejs. It turns me following errors. How do I fix the problem ? I use Ubuntu 14.04
Before this I use:

sudo sudo add-apt-repository ppa:chris-lea/node.js

and add other repository. After this I executing:

sudo apt-get install nodejs npm

Reading package lists... Done

Building dependency tree       

Reading state information... Done

Some packages could not be installed. This may mean that you have

requested an impossible situation or if you are using the unstable

distribution that some required packages have not yet been created

or been moved out of Incoming.

The following information may help to resolve the situation:



The following packages have unmet dependencies:

 nodejs : Conflicts: npm

E: Unable to correct problems, you have held broken packages.

georgi@sepulcher:~$ sudo apt-get install nodejs 

Reading package lists... Done

Building dependency tree       

Reading state information... Done

The following NEW packages will be installed:

  nodejs

0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.

Need to get 0 B/4428 kB of archives.

After this operation, 17,7 MB of additional disk space will be used.

Selecting previously unselected package nodejs.

(Reading database ... 175393 files and directories currently installed.)

Preparing to unpack .../nodejs_0.10.30-1chl1~trusty1_amd64.deb ...

Unpacking nodejs (0.10.30-1chl1~trusty1) ...

Processing triggers for man-db (2.6.7.1-1) ...

Setting up nodejs (0.10.30-1chl1~trusty1) ...

georgi@sepulcher:~$ sudo apt-get install npm

Reading package lists... Done

Building dependency tree       

Reading state information... Done

Some packages could not be installed. This may mean that you have

requested an impossible situation or if you are using the unstable

distribution that some required packages have not yet been created

or been moved out of Incoming.

The following information may help to resolve the situation:



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.