[Bioc-devel] right version "masked" by wrong version - not sure what "masked means"

Shepherd, Lori Lori.Shepherd at RoswellPark.org
Fri Apr 13 19:31:44 CEST 2018

Generally this means that there are multiple locations where the package is installed - as determined by .libPaths() -

The single package builder specifies a package specific place to install packages that are not installed by the daily builder


The package that was installled in this directory was masking the version used by the default location -

This is an issue on our end and if it occurs you should notify a Bioconductor team member.

Lori Shepherd

Bioconductor Core Team

Roswell Park Cancer Institute

Department of Biostatistics & Bioinformatics

Elm & Carlton Streets

Buffalo, New York 14263

From: Bioc-devel <bioc-devel-bounces at r-project.org> on behalf of Paul Shannon <paul.thurmond.shannon at gmail.com>
Sent: Tuesday, April 10, 2018 7:25:54 PM
To: bioc-devel
Subject: [Bioc-devel] right version "masked" by wrong version - not sure what "masked means"

I am trying to build IGV (a new submission) on windows (tokay2) after linux and macOS build clean.

IGV needs its base class package, BrowserViz, at version >= 2.0, whose build report is OK for install, build, and build bin.   BrowserViz 2.0.11 fails check, probably because now web browser is available on the build machines.

The IGV build on windows reports an error I have not seen before.  Can anyone help?  What does �masked� mean in this context - not of a function, method or variable, but apparently of the entire package?

- Paul

* installing *source* package 'IGV' ...
** R
** inst
** byte-compile and prepare package for lazy loading
Warning: version 2.0.11 of 'BrowserViz' masked by 1.11.0 in C:/Users/pkgbuild/packagebuilder/workers/jobs/704/R-libs
Error : package 'BrowserViz' 1.11.0 was found, but >= 2.0 is required by 'IGV'

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