* installing to library ‘/home/hornik/tmp/R.check/r-devel/Work/build/Packages’
* installing *source* package ‘Deducer’ ...
** package ‘Deducer’ successfully unpacked and MD5 sums checked
** R
** inst
** preparing package for lazy loading

Please type JGR() to download/launch console. Launchers can also be obtained at http://www.rforge.net/JGR/files/.

** help
*** installing help indices
** building package indices
** testing if installed package can be loaded

Please type JGR() to download/launch console. Launchers can also be obtained at http://www.rforge.net/JGR/files/.

Error : .onLoad failed in loadNamespace() for 'Deducer', details:
  call: .jfindClass(as.character(class))
  error: class not found
Error: loading failed
Execution halted
ERROR: loading failed
* removing ‘/home/hornik/tmp/R.check/r-devel/Work/build/Packages/Deducer’