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安装devtools软件包时出现问题
我希望使用该devtools包装。我运行了以下命令： > install.packages("devtools", dependencies = TRUE) .... > library(devtools) Error in library(devtools) : there is no package called ‘devtools’ 我究竟做错了什么？ 编辑：这是重新install.packages启动会话后重新运行命令的结果。 > install.packages("devtools", dependencies = TRUE) Installing package into ‘/home/evanaad/R/x86_64-pc-linux-gnu-library/3.0’ (as ‘lib’ is unspecified) --- Please select a CRAN mirror for use in this session --- Warning: dependencies ‘roxygen2’, ‘BiocInstaller’, …