我正在尝试安装 texlive-full 不幸的是，这里的答案无济于事！
错误：
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
texlive-full : Depends: asymptote but it is not going to be installed
Depends: biber but it is not going to be installed
Depends: cm-super (>= 0.3.3-3) but it is not going to be installed
Depends: context but it is not going to be installed
Depends: dvipng but it is not going to be installed
Depends: feynmf but it is not going to be installed
Depends: fragmaster but it is not going to be installed
Depends: latex-cjk-all (>= 4.6.0+cvs20060714-2) but it is not going to be installed
Depends: latexmk but it is not going to be installed
Depends: lmodern (>= 0.93.3) but it is not installable
Depends: prerex (> 6.5.3-1) but it is not going to be installed
Depends: purifyeps but it is not going to be installed
Depends: texlive-base (>= 2019.20200218) but it is not going to be installed
Depends: texlive-bibtex-extra (>= 2019.202000218) but it is not going to be installed
Depends: texlive-binaries (>= 2019.20190605)
Depends: texlive-extra-utils (>= 2019.202000218) but it is not going to be installed
Depends: texlive-font-utils (>= 2019.202000218) but it is not going to be installed
Depends: texlive-fonts-extra (>= 2019.202000218) but it is not going to be installed
Depends: texlive-fonts-extra-doc (>= 2019.202000218) but it is not going to be installed
Depends: texlive-fonts-extra-links (>= 2019.202000218) but it is not going to be installed
Depends: texlive-fonts-recommended (>= 2019.20200218) but it is not going to be installed
Depends: texlive-fonts-recommended-doc (>= 2019.20200218) but it is not going to be installed
Depends: texlive-formats-extra (>= 2019.202000218) but it is not going to be installed
Depends: texlive-games (>= 2019.202000218) but it is not going to be installed
Depends: texlive-humanities (>= 2019.202000218) but it is not going to be installed
Depends: texlive-humanities-doc (>= 2019.202000218) but it is not going to be installed
Depends: texlive-lang-arabic (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-chinese (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-cjk (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-cyrillic (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-czechslovak (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-english (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-european (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-french (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-german (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-greek (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-italian (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-japanese (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-korean (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-other (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-polish (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-portuguese (>= 2019.20200218) but it is not going to be installed
Depends: texlive-lang-spanish (>= 2019.20200218) but it is not going to be installed
Depends: texlive-latex-base (>= 2019.20200218) but it is not going to be installed
Depends: texlive-latex-base-doc (>= 2019.20200218) but it is not going to be installed
Depends: texlive-latex-extra (>= 2019.202000218) but it is not going to be installed
Depends: texlive-latex-extra-doc (>= 2019.202000218) but it is not going to be installed
Depends: texlive-latex-recommended (>= 2019.20200218) but it is not going to be installed
Depends: texlive-latex-recommended-doc (>= 2019.20200218) but it is not going to be installed
Depends: texlive-luatex (>= 2019.20200218) but it is not going to be installed
Depends: texlive-metapost (>= 2019.20200218) but it is not going to be installed
Depends: texlive-metapost-doc (>= 2019.20200218) but it is not going to be installed
Depends: texlive-music (>= 2019.202000218) but it is not going to be installed
Depends: texlive-pictures (>= 2019.20200218) but it is not going to be installed
Depends: texlive-pictures-doc (>= 2019.20200218) but it is not going to be installed
Depends: texlive-plain-generic (>= 2019.202000218) but it is not going to be installed
Depends: texlive-pstricks (>= 2019.202000218) but it is not going to be installed
Depends: texlive-pstricks-doc (>= 2019.202000218) but it is not going to be installed
Depends: texlive-publishers (>= 2019.202000218) but it is not going to be installed
Depends: texlive-publishers-doc (>= 2019.202000218) but it is not going to be installed
Depends: texlive-science (>= 2019.202000218) but it is not going to be installed
Depends: texlive-science-doc (>= 2019.202000218) but it is not going to be installed
Depends: texlive-xetex (>= 2019.20200218) but it is not going to be installed
Depends: tipa (>= 2:1.2-2.1) but it is not going to be installed
Depends: vprerex (> 6.5.3-1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
另外我运行命令sudo apt-cache policy texlive-full，输出是：
texlive-full:
Installed: (none)
Candidate: 2019.20200302-1~18.04.york0
Version table:
2019.20200302-1~18.04.york0 500
500 http://ppa.launchpad.net/jonathonf/texlive/ubuntu bionic/main amd64 Packages
500 http://ppa.launchpad.net/jonathonf/texlive/ubuntu bionic/main i386 Packages
2019.20190311-1~18.04.york0 500
500 http://ppa.launchpad.net/jonathonf/texlive-2019/ubuntu bionic/main amd64 Packages
500 http://ppa.launchpad.net/jonathonf/texlive-2019/ubuntu bionic/main i386 Packages
2017.20180305-1 500
500 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
500 http://archive.ubuntu.com/ubuntu bionic/universe i386 Packages
从上面的解决方案中，我尝试删除 libkpathsea6 但未安装：
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package 'libkpathsea6' is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.