Hi, I was going to ask this as an issue at the Bioconductor/BiocStyle repo, but the issue tracker is disabled. I ran into a bug which I'm not sure where it comes from. It happens during R CMD build using BiocStyle to generate an html vignette. For example, here is one such error: Quitting from lines 2-17 (derfinderHelper.Rmd) Error: processing vignette 'derfinderHelper.Rmd' failed with diagnostics: could not find function "doc_date" Execution halted doc_date comes from the yaml for the html vignette in which I use: date: "r doc_date()" The full log for this error message is at: https://travis-ci.org/leekgroup/derfinderHelper/builds/88823566#L3158-L3167 I used BiocStyle version 1.8.0 (see https://travis-ci.org/leekgroup/derfinderHelper/builds/88823566#L3393) and metacran/r-builder with the following Travis configuration file https://github.com/leekgroup/derfinderHelper/blob/86c2f3b38425ee4b089a5aab1716b058926968f7/.travis.yml I got the same error with other packages but wasn't able to reproduce it locally. I tried with pandoc 1.13.1 instead of 1.12.3 and it didn't work either on Travis (using metacran/r-builder). However, switching to R Travis v2 (the one with docs on the Travis website) works. Here is a full log of a case that works https://travis-ci.org/leekgroup/derfinderHelper/builds/88925326#L1757-L1765 using the same BiocStyle version and the following Travis config file https://github.com/leekgroup/derfinderHelper/blob/634aed4148c7bcb69438d0959bd1175ad03bce52/.travis.yml It's also the same R version (3.2.2). I think that something about the R version in metacran/r-builder could be the problem. Before I report this to metacran/r-builder, I was wondering if the BiocStyle maintainers had come up with this type of error before or have any clues on how to resolve it. Thanks, Leo PS I'd like this to work with metacran/r-builder given the R-devel issue with R Travis v2. Although it seems like docker support is on the way https://github.com/kasperdanielhansen/bsseq/issues/5
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