启动 R 帮助：文件错误（输出，“wt”）：无法打开连接

Question

我想启动 R 帮助，我输入?dir.create. 它给了我这个奇怪的错误：

文件错误（输出，“wt”）：无法打开连接

另外： 警告信息：

在文件中（输出，“wt”）：

无法打开文件“C:\Users\XYZ~1\AppData\Local\Temp\Rtmp86bEoJ\Rtxt32dcef24de2”：没有那个文件或目录

请帮我。我该怎么做才能克服这个问题？即使在谷歌上搜索这个问题也没有给我太多信息。

Answer 1

This happens when the temporary directory used by R is deleted. This usually happens when user or the system cleans up the tmp directory while the R session is running. Typically happens if the R session is open for a long time.

Remedy is very simple. You don't actually need to restart R. Just re-create the temporary directory by:

tempdir()
# [1] "C:\Users\XYZ~1\AppData\Local\Temp\Rtmp86bEoJ\Rtxt32dcef24de2"
dir.create(tempdir())

NOTE: this happens to me more and more often in Windows 10... even within like 8 hour session only! Not sure why this happens. See this question: https://superuser.com/questions/1502272/windows-10-cleaning-up-my-temp-dir-too-often

Answer 2

好的。谢谢大家。我能够通过更改目录并退出 R 并重新登录 swirl 来解决此问题。