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I installed TeX Live 2020 on my Linux system. When I try to invoke tlmgr --gui I get the error message

tlmgr: Cannot load Tk, thus the GUI cannot be started!
The Perl/Tk module is not shipped with the TeX Live installation.
You have to install it to get the tlmgr GUI working.
(INC = /usr/local/texlive/2020/texmf-dist/scripts/texlive /usr/local/texlive/2020/tlpkg /home/robert/anaconda3/lib/site_perl/5.26.2/x86_64-linux-thread-multi /home/robert/anaconda3/lib/site_perl/5.26.2 /home/robert/anaconda3/lib/5.26.2/x86_64-linux-thread-multi /home/robert/anaconda3/lib/5.26.2 .)

See https://tug.org/texlive/distro.html#perltk for more details.
Goodbye.

However, I do have perl-tk installed. sudo apt-get install perl-tk returns ... perl-tk is already the newest version (1:804.033-2build1).

With TeX Live 2019, which I had installed previously on the same system, this problem did not occur. Any idea how I could get tlmgr --gui to work?

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  • I just tried to do this by installing Perl with Anaconda, and that worked. I then installed perl-tk with Anaconda but when I tried running tlmgr --gui I got an error about some X11 library(ies) missing. I gave up and removed Perl and perl-tk. Sorry I couldn't be more helpful. The tug.org website seems to be down at them moment too. – LaTeXereXeTaL Jul 30 '20 at 20:06
  • As a quick test of Perl/Tk, does '/usr/bin/widget' work? – Siep Aug 16 '20 at 14:06
  • Yes, /usr/bin/widget works. – Robert Aug 17 '20 at 12:38
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    I saw in the error message a reference of a perl installation under /home/robert/anaconda3/ . This does not look like a debian/ubuntu perl installation. So you might try to move this installation out of the way, so that tlmgr tries to use the distribution perl. – Siep Aug 17 '20 at 19:16
  • Removing /home/robert/anaconda3/bin from the PATH variable indeed solved the problem. Thanks for the hint. If you want to turn your comment into an answer I am happy to accept it. – Robert Aug 20 '20 at 21:01
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If there is a competing perl without perl/tk on your system make sure the distribution package comes first on your PATH.

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