r - 将 read_csv 与 readr 包一起使用时找不到函数 "OlsonNames"

Question

我正在尝试使用 R 的 read_csv() 读取 csv 文件。

library(readr)
data <- read_csv("data/tmp.csv")

下面给出了 tmp.csv。

"A", "B", "C", "D", "E", "F", "G", "H", "I"
1,5,2015-07-31,5263,555,1,1,"0","1"
2,5,2015-07-31,6064,625,1,1,"0","1"
3,5,2015-07-31,8314,821,1,1,"0","1"
4,5,2015-07-31,13995,1498,1,1,"0","1"
5,5,2015-07-31,4822,559,1,1,"0","1"
6,5,2015-07-31,5651,589,1,1,"0","1"
7,5,2015-07-31,15344,1414,1,1,"0","1"
8,5,2015-07-31,8492,833,1,1,"0","1"
9,5,2015-07-31,8565,687,1,1,"0","1"

但它会产生以下错误。

Error in match(x, table, nomatch = 0L) : 
  could not find function "OlsonNames"

如何解决这个错误？我已经使用该错误进行了谷歌搜索，但没有找到任何相关的解决方案。

<小时/>

经过一番挖掘后，出现了同样的错误:

> locale()
Error in match(x, table, nomatch = 0L) : 
  could not find function "OlsonNames"

这似乎是与https://stat.ethz.ch/R-manual/R-devel/library/base/html/timezones.html相关的错误

重新启动 R session 不起作用。

我应该如何解决该错误？我需要安装一些软件包吗？如果有，是哪一个？

Answer 1

更新 R 似乎可以解决该问题。

要更新到 Ubuntu 14.04 的 R 3.2.2(仅适用于 Ubuntu 14.04 Trusty，如果您不使用 14.04，请正确更新 deb 软件包):

sudo echo 'deb http://cran.es.r-project.org/bin/linux/ubuntu trusty/' >> /etc/apt/sources.list
gpg --keyserver keyserver.ubuntu.com --recv-key E084DAB9
gpg -a --export E084DAB9 | sudo apt-key add -
sudo apt-get update
sudo apt-get upgrade

(更新说明来自:http://ubuntuforums.org/showthread.php?t=2264580)然后在最新版本的 R 中:

> install.packages('readr')
> library(readr)
> locale()
<locale>
Numbers:  123,456.78
Formats:  %Y%.%m%.%d / %H:%M
Timezone: UTC
Encoding: UTF-8
<date_names>
Days:   Sunday (Sun), Monday (Mon), Tuesday (Tue), Wednesday (Wed), Thursday
        (Thu), Friday (Fri), Saturday (Sat)
Months: January (Jan), February (Feb), March (Mar), April (Apr), May (May),
        June (Jun), July (Jul), August (Aug), September (Sep), October
        (Oct), November (Nov), December (Dec)
AM/PM:  AM/PM

现在加载 read_csv 可以正常工作，不会出现 OlsonNames 错误。

<小时/>

在更新我的 R 之前，这是我的 R 版本:

> version
               _                           
platform       x86_64-pc-linux-gnu         
arch           x86_64                      
os             linux-gnu                   
system         x86_64, linux-gnu           
status                                     
major          3                           
minor          0.2                         
year           2013                        
month          09                          
day            25                          
svn rev        63987                       
language       R                           
version.string R version 3.0.2 (2013-09-25)
nickname       Frisbee Sailing