如何安装Olson数据库？
尝试使用read_csv函数读取csv：
library(readr) read_csv("myfile.csv") 返回警告：
Warning message in OlsonNames(): “no Olson database found”
然后错误：
Error: Unknown TZ UTC Traceback: 1. read_csv("myfile.csv") 2. read_delimited(file, tokenizer, col_names = col_names, col_types = col_types, . locale = locale, skip = skip, comment = comment, n_max = n_max, . guess_max = guess_max, progress = progress) 3. col_spec_standardise(data, skip = skip, comment = comment, guess_max = guess_max, . col_names = col_names, col_types = col_types, tokenizer = tokenizer, . locale = locale) 4. guess_header(ds_header, tokenizer, locale) 5. guess_header_(datasource, tokenizer, locale) 6. default_locale() 7. locale() 8. check_tz(tz) 9. stop("Unknown TZ ", x, call. = FALSE)
我没有收到在R工作室没有返回这个错误，所以假设Olson数据库预安装与R工作室？
如何在R Jupyter笔记本上安装Olson数据库，以便read_csv能按预期运行？
更新：
我在Jupyter笔记本上独立地收到使用OlsonNames()调用相同的错误。 我正在运行的Jupyter笔记本是在https://github.com/jupyter/docker-stacks/tree/master/r-notebook指定的容器
更新2：
R包由docker文件指定：
# R packages RUN conda install --quiet --yes \ 'r-base=3.3.2' \ 'r-irkernel=0.7*' \ 'r-plyr=1.8*' \ 'r-devtools=1.12*' \ 'r-tidyverse=1.0*' \ 'r-shiny=0.14*' \ 'r-rmarkdown=1.2*' \ 'r-forecast=7.3*' \ 'r-rsqlite=1.1*' \ 'r-reshape2=1.4*' \ 'r-nycflights13=0.2*' \ 'r-caret=6.0*' \ 'r-rcurl=1.95*' \ 'r-crayon=1.3*' \ 'r-randomforest=4.6*' && \ conda clean -tipsy && \ fix-permissions $CONDA_DIR
操作系统：Ubuntu Core 14.04
R版本：
jovyan@6cf5af1246ff:~$ R -- version WARNING: unknown option '--' ARGUMENT 'version' __ignored__ R version 3.3.2 (2016-10-31) -- "Sincere Pumpkin Patch" Copyright (C) 2016 The R Foundation for Statistical Computing Platform: x86_64-pc-linux-gnu (64-bit) R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type 'license()' or 'licence()' for distribution details. Natural language support but running in an English locale R is a collaborative project with many contributors. Type 'contributors()' for more information and 'citation()' on how to cite R or R packages in publications. Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for an HTML browser interface to help. Type 'q()' to quit R. [Previously saved workspace restored] >
OlsonNames函数非常简单。 在3.3.2中，它在这些位置查找时区名称：
tzdirs <- c(Sys.getenv("TZDIR"), file.path(R.home("share"), "zoneinfo"), "/usr/share/zoneinfo", "/usr/share/lib/zoneinfo", "/usr/lib/zoneinfo", "/usr/local/etc/zoneinfo", "/etc/zoneinfo", "/usr/etc/zoneinfo")
您需要确保列出的目录之一可用。 如果系统中没有硬编码的，请将TZDIR设置为指向副本。