As far as I understand, what you are seeing is upstream ticket #11736, that will be fixed in 2.3.5. For more details, see https://www.lyx.org/trac/ticket/11736
** Bug watch added: www.lyx.org/trac/ #11736 http://www.lyx.org/trac/ticket/11736 -- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to lyx in Ubuntu. Matching subscriptions: Ubuntu Studio Bugs https://bugs.launchpad.net/bugs/1875909 Title: LyX can't build PDFs / missing begin document Status in lyx package in Ubuntu: New Bug description: Reconfigure results in: ``` Traceback (most recent call last): File "/usr/share/lyx/configure.py", line 1899, in <module> ret = checkLatexConfig(lyx_check_config and LATEX, bool_docbook) File "/usr/share/lyx/configure.py", line 1420, in checkLatexConfig for line in open(file, 'r', encoding='utf8').readlines(): File "/usr/lib/python3.8/codecs.py", line 322, in decode (result, consumed) = self._buffer_decode(data, self.errors, final) UnicodeDecodeError: 'utf-8' codec can't decode byte 0xa9 in position 845: invalid start byte support/Systemcall.cpp (276): Systemcall: 'python3 -tt "/usr/share/lyx/configure.py" --binary-dir="/usr/bin/"' finished with exit code 1 ``` Running 'python3 -tt "/usr/share/lyx/configure.py" --binary- dir="/usr/bin/"' in a terminal does *not* result in the error LyX is reporting and instead appears to complete successfully. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: lyx 2.3.4.2-2 ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Uname: Linux 5.4.0-26-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: MATE Date: Wed Apr 29 10:50:55 2020 InstallationDate: Installed on 2014-05-08 (2182 days ago) InstallationMedia: Linux Mint 16 "petra" - Release amd64 20131126 SourcePackage: lyx UpgradeStatus: Upgraded to focal on 2020-04-25 (4 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lyx/+bug/1875909/+subscriptions -- Mailing list: https://launchpad.net/~ubuntustudio-bugs Post to : ubuntustudio-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntustudio-bugs More help : https://help.launchpad.net/ListHelp
