Windows 上的 RSelenium 问题与 startServer()

Question

我刚刚从 github 安装了 RSelenium(当我通过 cran 安装它时也遇到了同样的问题)，我在 Windows 机器中收到以下错误:

Error in if (file.exists(file) == FALSE) if (!missing(asText) && asText ==  : 
  argument is of length zero
In addition: Warning message:
running command '"wmic" path win32_process get Caption,Processid,Commandline /format:htable' had status 44210 

从函数 startServer() 中，这是产生错误的部分:

system2("wmic", args = c("path win32_process get Caption,Processid,Commandline", 
                                    "/format:htable"), stdout = TRUE, stderr = NULL)

当我运行这部分时，我得到以下信息:

character(0)
attr(,"status")
[1] 44210
Warning message:
running command '"wmic" path win32_process get Caption,Processid,Commandline /format:htable' had status 44210 

我的sessionInfo()

R version 3.3.1 (2016-06-21)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

locale:
[1] LC_COLLATE=English_United Kingdom.1252  LC_CTYPE=English_United Kingdom.1252    LC_MONETARY=English_United Kingdom.1252
[4] LC_NUMERIC=C                            LC_TIME=English_United Kingdom.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] RSelenium_1.4.2 XML_3.98-1.4    RJSONIO_1.3-0   RCurl_1.95-4.8  bitops_1.0-6   

loaded via a namespace (and not attached):
 [1] httr_1.2.1      R6_2.1.2        tools_3.3.1     withr_1.0.1     curl_1.0        memoise_1.0.0   knitr_1.13      git2r_0.15.0   
 [9] caTools_1.17.1  digest_0.6.9    devtools_1.11.1

Answer 1

这是 Win 7 的问题。

htable XSL 样式表用于格式化 WMIC 路径 win32_process 的输出

使用区域设置时会导致不匹配。给出的可能的解决方法是:

1. 将 C:\Windows\system32\wbem\en-US*.xsl 文件复制或移动到 C:\Windows\system32\wbem\文件夹中。
2. 更改您的区域设置以匹配您的 Windows 语言版本，然后注销并重新登录。
3. 指定完整路径:WMIC process get/format:"%WINDIR%\System32\wbem\en-US\csv"

如 wmic error (invalid XSL format) in windows7 中所述