Install libraries for Shiny Server

[rohan1925]

Hi all,

I am creating shiny applications and am able to render them locally as I have the required libraries installed.

But when I upload them on the server, I get this error:

The application failed to start.

The application exited during initialization.

Error in library(d3heatmap) : there is no package called ‘d3heatmap’ Calls: runApp ... sourceUTF8 -> source -> withVisible -> eval -> eval -> library Execution halted

I have the following command for installing libraries in my global.r script if its not present.Let me know if I should keep it elsewhere..

if (!require("devtools")) install.packages("devtools")

devtools::install_github("rstudio/d3heatmap")

[Dean Attali]

It's probably because the package is available to your user but not to the shiny user.  It's very important when using shiny server to understand which user is being used and how each user can have their own R library. 

Read this section in the docs

http://rstudio.github.io/shiny-server/latest/#run_as

Unless you edited the default config file, the user running the app is `shiny`. So you need to make sure the packages requires are available in shiny's R library. You can do that in several ways, for example log in as `root` and install the package will usually work

[Dean Attali]

Sorry I missed the end bit of your post showing the code inside global.R.  Not sure then. I'd still try to see if the shiny user has the package installed in their library path

[Joe Cheng]

Probably the install.packages calls in global.R are not succeeding because the shiny user doesn't have a user library, which is created the first time you install a package interactively. Can you try (or ask your administrator to try) changing to the Shiny user ("sudo su shiny"), then launching R, and installing a package (any package) manually?

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