Eu tive o mesmo problema com o npm.
Sugiro que você instale o aptitude, que pode ajudá-lo a resolver conflitos
sudo apt install aptitude
em seguida, instale seu pacote com o aptitude
sudo aptitude install npm
Estou tentando atualizar meus nodejs para 7.6, mas falhei. Agora eu tenho um novo problema depois de reinstalar o nó 6.10:
$ sudo apt-get purge nodejs npm
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package 'npm' is not installed, so not removed
The following packages were automatically installed and are no longer required:
linux-headers-4.8.0-40 linux-headers-4.8.0-40-generic linux-image-4.8.0-40-generic linux-image-extra-4.8.0-40-generic
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED
nodejs*
0 to upgrade, 0 to newly install, 1 to remove and 53 not to upgrade.
After this operation, 51.7 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 278133 files and directories currently installed.)
Removing nodejs (6.9.5-1nodesource1~yakkety1) ...
Processing triggers for man-db (2.7.5-1) ...
(Reading database ... 274476 files and directories currently installed.)
Removing nodejs (6.9.5-1nodesource1~yakkety1) ...
Purging configuration files for nodejs (6.9.5-1nodesource1~yakkety1) ...
dpkg: warning: while removing nodejs, directory '/usr/lib/node_modules' not empty so not removed
Por que isso diz Package 'npm' is not installed, so not removed ? Eu tenho usado o npm para instalar muitos pacotes de nós para meus projetos!
Eu ignoro o erro e fui instalar o nó 7.6:
$ curl -sL https://deb.nodesource.com/setup_7.6 | sudo -E bash -
bash: line 1: html: No such file or directory
bash: line 2: syntax error near unexpected token '<'
'ash: line 2: '<head><title>404 Not Found</title></head>
Então eu voltei ao nó 6.x. Mas não consigo mais instalar o npm:
$ 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 (>= 0.3.0-2) but it is not going to be installed
Depends: node-ansi-color-table 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 (>= 3.0.1) 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-underscore 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.
Alguma idéia?
Eu tive o mesmo problema com o npm.
Sugiro que você instale o aptitude, que pode ajudá-lo a resolver conflitos
sudo apt install aptitude
em seguida, instale seu pacote com o aptitude
sudo aptitude install npm