* installing to library ‘/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages’
* installing *source* package ‘tractor.base’ ...
** package ‘tractor.base’ successfully unpacked and MD5 sums checked
** using staged installation
** R
** inst
** byte-compile and prepare package for lazy loading
in method for ‘coerce’ with signature ‘"MriImage","nifti"’: no definition for class “nifti”
in method for ‘coerce’ with signature ‘"nifti","MriImage"’: no definition for class “nifti”
** help
*** installing help indices
  converting help for package ‘tractor.base’
    finding HTML links ... done
    DicomMetadata-class                     html  
    MriImage-class                          html  
    SerialisableObject-class                html  
    SparseArray-class                       html  
    TractorObject-class                     html  
    allEqual                                html  
    asMriImage                              html  
    colourScales                            html  
    deduplicate                             html  
    embrace                                 html  
    emptyMatrix                             html  
    equivalent                              html  
    execute                                 html  
    files                                   html  
    implode                                 html  
    index                                   html  
    indexList                               html  
    infix                                   html  
    lambda                                  html  
    mergeMriImages                          html  
    neighbourhoodInfo                       html  
    newSparseArrayWithData                  html  
    nilObject                               html  
    paths                                   html  
    pluralise                               html  
    printLabelledValues                     html  
    finding level-2 HTML links ... done

    promote                                 html  
    readDicomDirectory                      html  
    readDicomFile                           html  
    serialisation                           html  
    sortDicomDirectories                    html  
    threadSafeTempFile                      html  
    vector                                  html  
    viewer                                  html  
    visualisation                           html  
    where                                   html  
** building package indices
** testing if installed package can be loaded from temporary location
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (tractor.base)