IBM Support

Unable to use R library installed via R notebook

Troubleshooting


Problem

Installed the following R Package as a ADMIN. Package installation has been successful with the following comments from DSX.
Installing package into ‘/user-home/_global_/R’
(as ‘lib’ is unspecified).
 
However, while trying to reference these libraries with in R Code, we are getting an error. ( e.g: Cario package)
 
Warning: Error in : .onLoad failed in loadNamespace() for 'Cairo', details:
call: dyn.load(file, DLLpath = DLLpath, ...)
error: unable to load shared object '/user-home/_global_/R/Cairo/libs/Cairo.so':
libjpeg.so.8: cannot open shared object file: No such file or directory
 
Steps followed to install R PKG
- Login to DSX as a ADMIN
- Open a notebook and set the kernel to be R3.4.3 with DSX Spark 2.2.1
- install.packages("Cairo")

Symptom

Warning: Error in : .onLoad failed in loadNamespace() for 'Cairo', details:
call: dyn.load(file, DLLpath = DLLpath, ...)
error: unable to load shared object '/user-home/_global_/R/Cairo/libs/Cairo.so':
libjpeg.so.8: cannot open shared object file: No such file or directory

Cause

need to install the library from Rstudio not the notebook

Environment

DSXHi 1.2.0.3 on Linux

Resolving The Problem

 Install R Packages using the "install.packages()" command in RStudio rather than R Notebook

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSKKD2","label":"IBM Data Science Experience Local"},"Component":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"1.2.0.3","Edition":"DSXHi","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
20 September 2018

UID

ibm10732307

Page Feedback