问题
I'm fairly new to R, Shiny, Shiny Server and Ubuntu 12.04. After a long day I've got just about everything working except for actually having shiny-server host my app. I'm trying to host my app locally.
This is my error:
Error in library(ggplot2) : there is no package called ‘ggplot2’ Calls: runApp ...
startAppDir -> sys.source -> eval -> eval -> library
Execution halted
And here is some relevant info generated by >sessionInfo():
R version 3.0.3 (2014-03-06)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] grid stats graphics grDevices utils datasets methods
[8] base
other attached packages:
[1] gridExtra_0.9.1 shiny_0.9.1 ggplot2_0.9.3.1
loaded via a namespace (and not attached):
[1] bitops_1.0-6 caTools_1.16 colorspace_1.2-4 dichromat_2.0-0
[5] digest_0.6.4 gtable_0.1.2 httpuv_1.2.3 labeling_0.2
[9] MASS_7.3-30 munsell_0.4.2 plyr_1.8.1 proto_0.3-10
[13] RColorBrewer_1.0-5 Rcpp_0.11.1 reshape2_1.2.2 RJSONIO_1.0-3
[17] scales_0.2.3 stringr_0.6.2 tcltk_3.0.3 tools_3.0.3
[21] xtable_1.7-3
>
I tested without shiny-server and the app works fine
runApp("/var/shiny-server/www/examples/MY_APP/")
I've also tested the examples that came with shiny-server and they work fine but they don't use ggplot2.
ggplot2 is clearly installed so I suspect it's a permission issue (?) but I don't know how to fix it...
Thanks for your help !
*SOLUTION* Using .libPaths() I was able to determine that custom packages installed by
>install.packages("ggplot2")
are placed in the main directory
/home/USER/R/x86_64-pc-linux-gnu-library/3.0/ggplot2
I had to copy every file from folder '~3.0/' into
/usr/local/lib/R/site-library
It works now! Thanks :D
回答1:
Try installing ggplot2 package to the system directory (not local user directory), by running
sudo R
(within R session)
install.packages('ggplot2')
Since shiny may run under a different user name, it may not have access to your locally installed R libraries.
回答2:
try:
install.packages("ggplot2", lib=.Library, dependencies=T)
The issue is that the default install directory is whatever's first in .libPaths(), which will be a home directory site not shared by the shiny user.
来源：https://stackoverflow.com/questions/22696363/r-shiny-server-on-ubuntu