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[R-pkg-devel] Package fails to build on CRAN Windows server: rtracklayer version too new

Hi all,

I am trying to submit an update to my package
(https://cran.r-project.org/package=Signac) to CRAN, but it is
currently failing to install on the Windows server. I see the
following installation error: "namespace 'rtracklayer' 1.48.0 is being
loaded, but >= 1.51.5 is required."

The current release version for rtracklayer is 1.50.0
(https://www.bioconductor.org/packages/release/bioc/html/rtracklayer.html).
My package does not set a version requirement for rtracklayer, so this
installation error must be caused by having a pre-release version of
one of my bioconductor dependencies installed on the windows server.

Does anyone know how I might be able to solve this issue? I have tried
contacting the CRAN team a few times by reply-all to the CRAN emails,
but have not had any response from them. This seems like an issue that
could only be solved by fixing the installation of packages on the
CRAN Windows server.

Incoming test results:
https://win-builder.r-project.org/incoming_pretest/Signac_1.1.2_20210415_225235/

Thanks,
Tim