幸運なことに、今年の木の下でRaspberry Piを手に入れることができたので、デバイスでNode.jsを使って少し楽しかったです。ただし、パッケージをプルダウンしてアプリケーションにプラグインできる場合、Node.jsの方がはるかに興味深いです。ここで問題が発生します。
次のコマンドでNode.jsとともにNPMをインストールしようとすると：
sudo apt-get install nodejs npm次のエラーが表示されます。
pi@raspberrypi ~ $ 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 : Breaks: npm (< 1.1.4~dfsg-2~) but 1.1.4~dfsg-1 is to be installed
npm : Depends: node-semver but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
DebianベースのLinuxオペレーティングシステムでパッケージ管理がどのように機能するかについてはかなり新しく、node.jsコミュニティが特定のパッケージをどのように構成したかについてはあまり知りません。node.jsを単独でインストールすると問題なく動作し、NPMを単独でインストールしようとすると、これが得られます。
pi@raspberrypi ~ $ 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: nodejs-dev but it is not going to be installed
Depends: node-request but it is not going to be installed
Depends: node-mkdirp but it is not going to be installed
Depends: node-minimatch but it is not going to be installed
Depends: node-semver but it is not going to be installed
Depends: node-ini but it is not going to be installed
Depends: node-graceful-fs but it is not going to be installed
Depends: node-abbrev but it is not going to be installed
Depends: node-nopt but it is not going to be installed
Depends: node-fstream but it is not going to be installed
Depends: node-rimraf but it is not going to be installed
Depends: node-tar 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.
確信はありませんが、私の腸は、それがnode-semverパッケージに関係していることを教えてくれます。私がインストールした場合はnodejs、それ自体で、パッケージをして、インストールしようとnode-semver、これは私が得ることを出力します。
pi@raspberrypi ~ $ sudo apt-get install node-semver
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:
node-semver : Depends: nodejs but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
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