R，install.packages（'devtools'）错误

Question

我似乎无法安装devtools。 我总是收到此消息（最后）：

  * installing *source* package ‘RCurl’ ...
  ** package ‘RCurl’ successfully unpacked and MD5 sums checked
  checking for curl-config... no
  Cannot find curl-config
  ERROR: configuration failed for package ‘RCurl’
  * removing ‘/home/vapri/R/x86_64-pc-linux-gnu-library/3.0/RCurl’
  Warning in install.packages :
    installation of package ‘RCurl’ had non-zero exit status
  ERROR: dependency ‘RCurl’ is not available for package ‘httr’
  * removing ‘/home/vapri/R/x86_64-pc-linux-gnu-library/3.0/httr’
  Warning in install.packages :
    installation of package ‘httr’ had non-zero exit status
  ERROR: dependencies ‘httr’, ‘RCurl’ are not available for package ‘devtools’
  * removing ‘/home/vapri/R/x86_64-pc-linux-gnu-library/3.0/devtools’
  Warning in install.packages :
    installation of package ‘devtools’ had non-zero exit status

The downloaded source packages are in
    ‘/tmp/RtmpqLDAb0/downloaded_packages’

有人可以告诉我怎么了吗？ 我正在使用Ubuntu 14.04，有些研究似乎暗示可能是这个问题。

Answer 1

仔细观察：

 checking for curl-config... no
  Cannot find curl-config

您需要curl-config脚本。 通常，您需要一个libcurl*-dev或类似的软件包，并且发行版之间的名称可能有所不同。 在我输入以下内容的系统上：

edd@max:~$ dpkg -S `which curl-config`
libcurl4-nss-dev: /usr/bin/curl-config
edd@max:~$ 

但是还有另外一个libcurl4-gnutls-dev和libcurl4-openssl-dev ，我可以在其他一些系统上使用。

Answer 2

帮助过我。

sudo apt-get install aptitude
sudo apt-get install libcurl4-openssl-dev
sudo apt-get install libxml2-dev