TCLTK Issues

MplusAutomation requires the tcltk package to work. On Macs, this requires an installation of X Server (XQuartz or X11). If you get an error along these lines:

Error : .onLoad failed in loadNamespace() for 'tcltk', details:
  call: dyn.load(file, DLLpath = DLLpath, ...)
  error: unable to load shared object   
'/Library/Frameworks/R.framework/Versions/3.1/Resources/library/tcltk/libs/tcltk.so':
  dlopen(/Library/Frameworks/R.framework/Versions/3.1/Resources/library/tcltk/libs/tcltk.so, 10): Library not     
loaded: /opt/X11/lib/libX11.6.dylib
  Referenced from: /Library/Frameworks/R.framework/Versions/3.1/Resources/library/tcltk/libs/tcltk.so
  Reason: image not found
Error: package or namespace load failed for ‘MplusAutomation’

This is a good indicator that the issue is not with MplusAutomation and instead has to do with tcltk and XQuartz/X11.

If you have this error on a Mac, you can try installing XQuartz or X11 app. If you have that installed, in a clean R session try this:

library(tcltk)

If the tcltk package cannot load successfuly, you will not be able to load MplusAutomation. You need to keep debugging until tcltk loads correctly.

There are a number of pages with suggestions, including:

• http://stackoverflow.com/questions/24056670/unable-to-load-caret-package-in-r-on-r-3-1-0-on-osx-10-9
• http://socserv.socsci.mcmaster.ca/jfox/Misc/Rcmdr/installation-notes.html
• http://stackoverflow.com/questions/18550971/tcltk-library-issue-while-install-rcmdr-package-on-macbookpro