【发布时间】：2021-01-04 13:43:57
【问题描述】：
我真的很难安装npm。我已经成功安装了nodejs 软件包，但我的操作系统Ubuntu 15.10（Wily Werewolf）仍然无法识别如下所示的npm 命令，即使在使用sudo apt-get update 进行了几次更新尝试后：
user@user-T420:~$ sudo apt-get install nodejs
Reading package lists... Done
Building dependency tree
Reading state information... Done
nodejs is already the newest version.
The following packages were automatically installed and are no longer required:
authbind diffstat hardening-includes libapt-pkg-perl libarchive-zip-perl
libbonobo2-0 libbonobo2-common libcamel-1.2-29 libclass-accessor-perl
libclone-perl libedataserver-1.2-15 libemail-valid-perl libgles1-mesa
libgnome2-0 libgnome2-bin libgnome2-common libidl-common libidl0
libindicate5 libio-pty-perl libio-string-perl libipc-run-perl
libnet-dns-perl libnet-domain-tld-perl libnet-ip-perl liborbit2
libperlio-gzip-perl libpoppler19 libqt5x11extras5 libsdl-image1.2
libtext-levenshtein-perl libtiff4 libva-drm1 libxcb-composite0 libxcb-xv0
linux-headers-4.2.0-16 linux-headers-4.2.0-16-generic
linux-image-4.2.0-16-generic linux-image-extra-4.2.0-16-generic patchutils
t1utils vlc-plugin-notify vlc-plugin-samba
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.
user@user-T420:~$ npm -v
The program 'npm' is currently not installed. You can install it by typing:
sudo apt-get install npm
user@user-T420:~$ 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-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
user@user-T420:~$ sudo apt-get install nodejs-dev
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-dev : Depends: libssl-dev (>= 1.0.0g) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
user@user-T420:~$ sudo apt-get install libssl-dev
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:
libssl-dev : Depends: libssl1.0.0 (= 1.0.1-4ubuntu5.36) but 1.0.2d-0ubuntu1.4 is to be installed
Depends: zlib1g-dev but it is not going to be installed
Recommends: libssl-doc but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
user@user-T420:~$ sudo apt-get install zlib1g-dev
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:
zlib1g-dev : Depends: zlib1g (= 1:1.2.3.4.dfsg-3ubuntu4) but 1:1.2.8.dfsg-2ubuntu4 is to be installed
E: Unable to correct problems, you have held broken packages.
它看起来是一棵无限的依赖树。有解决办法吗？
如果这有任何帮助，这是我的 sources.list 文件：
#############################################################
############### OFFICIAL UBUNTU REPOSITORIES ################
#############################################################
###### Ubuntu Main Repositories
deb http://us.archive.ubuntu.com/ubuntu/ precise main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise main restricted universe multiverse
###### Ubuntu Update Repos
deb http://us.archive.ubuntu.com/ubuntu/ precise-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
###### Ubuntu Partner Repository
deb http://archive.canonical.com/ubuntu precise partner
deb-src http://archive.canonical.com/ubuntu precise partner
###### Ubuntu Extras Repository
deb http://extras.ubuntu.com/ubuntu precise main
deb-src http://extras.ubuntu.com/ubuntu precise main
【问题讨论】：
-
您可能想尝试askubuntu.com，因为这不是关于编程，而是更多关于设置编程环境（当然还有 Ubuntu）。
-
不要使用来自 Ubuntu repos 的 nodejs，而是从这里安装它 github.com/nodesource/distributions#installation-instructions
-
谢谢大家的建议。我终于可以解决问题了。特别感谢@FelipeMorales。