C50 package 在 Mac 上安装错误：C 编译器无法创建可执行文件

Question

我正在尝试为 R 安装 package C50 ，但没有成功。 I use R via Anaconda but the package is not available in the Anaconda environment so I have tried to install it directly from RStudio.

• RStudio版本为：版本1.1.456
• R 版本为：3.6.1 (2019-07-05)
• Anaconda版本为：1.9.7
• MacOS：卡特琳娜 10.15.3

我既使用了标准install.packages("C50") ，也使用了 GitHub 存储库中的直接安装（使用devtools ）。 环顾四周，这似乎是与 SDK 标头（？我不知道那是什么）以及 MacOs 系统中目录随时间的演变有关的问题。

一次在线搜索将我带到了这里（但我再次不知道如何前进）：

https://github.com/conda-forge/compilers-feedstock/issues/11

我在尝试安装 package 时收到的消息下方重现：

* installing *source* package ‘Cubist’ ...
** package ‘Cubist’ successfully unpacked and MD5 sums checked
** using staged installation
checking for gcc... x86_64-apple-darwin13.4.0-clang
checking whether the C compiler works... no
configure: error: in `/private/var/folders/sh/hq44lqs10677_vvkvxq01yvh0000gn/T/Rtmpk04dKp/R.INSTALL5020659d63fc/Cubist':
configure: error: C compiler cannot create executables
See `config.log' for more details
ERROR: configuration failed for package ‘Cubist’
* removing ‘/opt/anaconda3/lib/R/library/Cubist’
* restoring previous ‘/opt/anaconda3/lib/R/library/Cubist’
Warning in install.packages :
  installation of package ‘Cubist’ had non-zero exit status
* installing *source* package ‘C50’ ...
** package ‘C50’ successfully unpacked and MD5 sums checked
** using staged installation
checking for gcc... x86_64-apple-darwin13.4.0-clang
checking whether the C compiler works... no
configure: error: in `/private/var/folders/sh/hq44lqs10677_vvkvxq01yvh0000gn/T/Rtmp2NjIsn/R.INSTALL50b47eac3131/C50':
configure: error: C compiler cannot create executables
See `config.log' for more details.
ERROR: configuration failed for package ‘C50’
* removing ‘/opt/anaconda3/lib/R/library/C50’
Warning in install.packages :
  installation of package ‘C50’ had non-zero exit status

The downloaded source packages are in
    ‘/private/var/folders/sh/hq44lqs10677_vvkvxq01yvh0000gn/T/RtmpdUmDxS/downloaded_packages’
Updating HTML index of packages in '.Library'
Making 'packages.html' ... done

另一个提示是查看config.log但我不知道如何找到它。

我不知道如何解释这条消息，任何提示都会很棒。

Answer 1

一种可能是您的xcode许可证已过期。 尝试运行：

sudo xcodebuild -license

在命令行中，然后同意许可。