我在一台带有 R 版本 3.5.1 的 Ubuntu 18.04 机器上,按照 this 安装链接.我正在尝试安装 CRAN 包 rJava,我按照以下方式进行安装(如 这里):
sudo apt-get install r-cran-rjava
但是,我明白了:
以下包有未满足的依赖关系:r-cran-rjava :取决于:r-api-3.4E: 无法纠正问题,您持有破损的包裹.
但是当我尝试时:
sudo apt-get install r-api-3.4
我明白了:
E: 包 'r-api-3.4' 没有安装候选
如何用 r-api-3.4
解决这个问题?基本上,我需要安装 rJava
才能安装和使用 XLConnect
...在 Ubuntu 16.04 中,我没有任何问题...
显然 r-api-3.4
应该由 r-base-core
提供.我确实在其最新版本中安装了 r-base-core
,为什么我仍然会看到错误?
API版本由r-base-core
提供.原因是二进制包(有时)依赖于构建它们的 R 版本.这样,您只能安装组合在一起的软件包.
在您的情况下,您有来自主 Ubuntu 存储库的软件包(r-base-core
3.4.x 提供 r-api-3.4
和 r-cran-rjava
需要 r-api-3.4
)和自定义 PPA(r-base-core
3.5.y 提供 r-api-3.5代码>).一种选择是仅使用 Ubuntu 的版本,即 R 3.4.另一种解决方案是添加额外的 PPA:
sudo add-apt-repository ppa:marutter/c2d4u3.5sudo apt-get 更新
之后应该可以使用需要 r-api-3.5
的 r-cran-rjava
版本.另请参阅 http://rubuntu.netlify.com/post/2018-05-25-announcing-c2d4u3-5/ 和 http://rubuntu.netlify.com/post/2018-06-11-r-3.5-on-debian-and-ubuntu-update/.p>
最后,您始终可以直接从 CRAN 安装 R 包.当您在 Debian 上使用 CRAN 提供的 R backports 时,这是目前唯一的可能性.
I am on an Ubuntu 18.04 machine with R version 3.5.1, installed following this link. I am trying to install the CRAN package rJava, which I do the following way (as seen here):
sudo apt-get install r-cran-rjava
However, I get this:
The following packages have unmet dependencies:
r-cran-rjava : Depends: r-api-3.4
E: Unable to correct problems, you have held broken packages.
But when I try:
sudo apt-get install r-api-3.4
I get:
E: Package 'r-api-3.4' has no installation candidate
How to overcome this problem with r-api-3.4
? Basically, I need to install rJava
to be able to install and use XLConnect
... In Ubuntu 16.04, I had no problems whatsoever...
EDIT:
Apparently, r-api-3.4
should be provided by r-base-core
. I do have r-base-core
installed in its newest version, why do I still see errors then?
The API versions are provided by r-base-core
. The reason is that binary packages (sometimes) depend on the R version, for which they have been build. This way you can only install packages that fit together.
In your case you have packages from the main Ubuntu repository (r-base-core
3.4.x providing r-api-3.4
and r-cran-rjava
requiring r-api-3.4
) and from a custom PPA (r-base-core
3.5.y providing r-api-3.5
). One option would be to only use the version from Ubuntu, i.e. R 3.4. Another solution is to add an additional PPA:
sudo add-apt-repository ppa:marutter/c2d4u3.5
sudo apt-get update
After that a version of r-cran-rjava
requiring r-api-3.5
should be available.
See also http://rubuntu.netlify.com/post/2018-05-25-announcing-c2d4u3-5/ and http://rubuntu.netlify.com/post/2018-06-11-r-3.5-on-debian-and-ubuntu-update/.
Finally, you always have the possibility to install the R packages directly from CRAN. That is currently the only possibility when you are using the CRAN supplied R backports on Debian.
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