我一直在尝试安装 SNA 软件包,但总是出现下一个错误,
> install.packages("sna")
Installing package(s) into ‘/home/rvaca/R/i486-pc-linux-gnu-library/2.14’
(as ‘lib’ is unspecified)
--- Please select a CRAN mirror for use in this session ---
Loading Tcl/Tk interface ... done
trying URL 'http://cran.cnr.Berkeley.edu/src/contrib/sna_2.2-0.tar.gz'
Content type 'application/x-gzip' length 273329 bytes (266 Kb)
opened URL
==================================================
downloaded 266 Kb
The downloaded packages are in
‘/tmp/Rtmp7iF3Qz/downloaded_packages’
> library(sna)
starting httpd help server ... done
Error in attr(helpObj, "call") <- this.call :
attempt to set an attribute on NULL
Error: package/namespace load failed for ‘sna’
> library("sna")
Error in attr(helpObj, "call") <- this.call :
attempt to set an attribute on NULL
Error: package/namespace load failed for ‘sna’
> library('sna')
Error in attr(helpObj, "call") <- this.call :
attempt to set an attribute on NULL
Error: package/namespace load failed for ‘sna’
发生了什么?提前致谢
放假