* installing to library ‘/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages’
* installing *source* package ‘imt’ ...
** this is package ‘imt’ version ‘1.0.0’
** package ‘imt’ successfully unpacked and MD5 sums checked
** using staged installation
Error in rstan::stanc(file_name, allow_undefined = TRUE, obfuscate_model_name = FALSE,  : 
  parser failed badly; maybe try installing the V8 package
Calls: <Anonymous> -> sapply -> lapply -> FUN -> <Anonymous>
Execution halted
ERROR: configuration failed for package ‘imt’
* removing ‘/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/imt’