有些时候警告会变成错误

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有些时候警告会变成错误

经常就是打开R或者终端写shell脚本，就会发现下面这样的警告：

During startup - Warning message:
Setting LC_CTYPE failed, using "C"
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通常我是选择无视它咯。

但也有时候，这个警告会成为致命错误。

比如安装一个GitHub来源的包：

```r
BiocManager::install(c('remotes','devtools'),ask = F,update = F) 
BiocManager::install('nik01010/dashboardthemes')

然后就报错了：

- preparing 'dashboardthemes':
v checking DESCRIPTION meta-information
- checking for LF line-endings in source and make files and shell scripts
- checking for empty or unneeded directories
- building 'dashboardthemes_1.0.2.tar.gz'

Error: (converted from warning) Setting LC_CTYPE failed, using "C"
Execution halted
Error in i.p(...) :
 (converted from warning) installation of package '/tmp/RtmpzlA16W/file6a8b5d45db7b/dashboardthemes_1.0.2.tar.gz' had non-zero exit status

这个时候大家会误以为是 had non-zero exit status 这个问题，所以大家求助就集中火力在这里，实际上是不对的。

很容易思考一下，就应该是去其它电脑运行同样的代码看看，

加上两句代码：

Sys.setenv(LANG="en_US.UTF-8")
Sys.setenv(LC_ALL="en_US.UTF-8")
BiocManager::install('ggpubr',ask = F,update = F)

就成功了：

- building dashboardthemes_1.0.2.tar.gz

* installing *source* package ‘dashboardthemes’ ...
** R
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded
* DONE (dashboardthemes)
​

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