I have upgraded R (from 3.6 to 4.0) and RStudio (from 1.1 to 1.2.5) a few days ago, and Ubuntu from 18.04 to 20.04 yesterday.
Since then, R sometimes never terminates when executing certain commands: ivreg (from package AER), summary (of a logit regression) and logitmfx (from package mfx). Sometimes these commands run fine, but most of the time I have to kill the process because R won't terminate the execution, even when pressing the red Stop button in RStudio or doing Ctrl + C when using R in the terminal. When I tried example('AER'), it worked fine. Then I re-installed the package AER. It threw 10 warnings of type In readLines(file, skipNul = TRUE) : cannot open compressed file '/usr/lib/R/site-library/[package]/DESCRIPTION', probable reason 'No such file or directory' where [package] is abind, colorspace, dichromat... (but not AER). Since then example('AER') throws a warning: no help found for ‘AER’. I've removed and reinstalled R 4.0: it didn't help. I've downgraded to R 3.6: it didn't help. I've tried both answering yes or No when asked to install the packages in a personal library: none works. So I think the problem comes from Ubuntu 20.04, and is related to this post: https://stat.ethz.ch/pipermail/r-sig-debian/2020-April/003166.html. When I reinstall packages, I have a bunch of warnings related to Fortran 2018 that no longer support certain commands. I hope someone can help. -- Adrien Fabre École d'Économie de Paris/Paris School of Economics – Université Paris 1 (R4-47) Page personnelle/Home page <http://sites.google.com/view/adrien-fabre> (+33/0)6.10.37.90.51 [[alternative HTML version deleted]] _______________________________________________ R-SIG-Debian mailing list R-SIG-Debian@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-debian