Hi all,

​I've been trying to install and use xps package for weeks, without any success :(

​I carefully read installation instructions for root and looked for help in several forums. Based on this information, I already  tried to install versions ftp://root.cern.ch/root/root_v5.34.05.macosx106-x86_64-gcc-4.2.tar.gz and ftp://root.cern.ch/root/root_v5.26.00c.macosx106-x86_64-gcc-4.2.tar.gz (based on this post https://support.bioconductor.org/p/55744/) both in my home directory and in /usr/local 

After downloading the source, I run the commands:

cd root

. bin/thisroot.sh

However, I've been getting this error message constantly when trying to load xps package on R:

> library(xps)

Error in dyn.load(file, DLLpath = DLLpath, ...) : 

  unable to load shared object '/Library/Frameworks/R.framework/Versions/3.2/Resources/library/xps/libs/xps.so':

  dlopen(/Library/Frameworks/R.framework/Versions/3.2/Resources/library/xps/libs/xps.so, 6): Library not loaded: /usr/local/root/lib/root/libGui.so  Referenced from: /Library/Frameworks/R.framework/Versions/3.2/Resources/library/xps/libs/xps.so

  Reason: image not found

Error: package or namespace load failed for ‘xps’

Here is my session info:

> sessionInfo()

R version 3.2.0 (2015-04-16)

Platform: x86_64-apple-darwin13.4.0 (64-bit)

Running under: OS X 10.10.3 (Yosemite)

locale:

[1] C/UTF-8/C/C/C/C

attached base packages:

[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:

[1] BiocInstaller_1.18.2

loaded via a namespace (and not attached):

[1] tools_3.2.0

Could somebody help me with this issue? Thanks a lot!

Dear Mari,

First, please delete ROOT and everything related to ROOT from your Mac.

Second, I do not recommend to install ROOT in /usr/local 
install ROOT in your home directory or in any other directory.

For Yosemite you need to download:
ftp://root.cern.ch/root/root_v5.34.30.macosx64-10.10-clang61.tar.gz
or, if you want to compile root yourself:
ftp://root.cern.ch/root/root_v5.34.30.source.tar.gz

As far as I know, older versions of ROOT do not run under Yosemite.

Please note that you need to install X11 on your Mac:
xquartz.macosforge.org/downloads/SL/XQuartz-2.7.7.dmg

Then you need to create in your home directory the file '.bashrc'

Here is as example my '.bashrc' file:

# - - - - - - - - - - - - - - - - - -
# .bashrc

# User specific aliases and functions

#svn
export PATH=$PATH:/usr/local/bin

# latex
export PATH=/usr/texbin:$PATH

# ROOT settings
export MACOSX_DEPLOYMENT_TARGET=10.9
export TMPDIR=/Users/cstrato/temp

# here you add your path to root
export ROOTSYS=/Volumes/GigaData/ROOT/root
export PATH=$ROOTSYS/bin:$PATH
export LD_LIBRARY_PATH=$ROOTSYS/lib:$LD_LIBRARY_PATH
export DYLD_LIBRARY_PATH=$ROOTSYS/lib:$DYLD_LIBRARY_PATH

# Source global definitions
if [ -f /etc/bashrc ]; then
    . /etc/bashrc
fi
# - - - - - - - - - - - - - - - - - -

Best regards,
Christian

Dear Mari,

I am glad to hear that you got xps to work. 

In my opinion it is best to use xps with xterm since by setting parameter 
'verbose=TRUE' in the functions you can immediately follow the progress. 

On the Mac 'R.app' is the official GUI for R, and xps should work with R.app, too.

I do not have RStudio and I have never tried it so I do not know what the
problem with RStudio may be. 

Best regards,
Christian