[tex-live] Error

[Alita]

alireza at alireza-X550MD ~ $  tlmgr init-usertree
(running on Debian, switching to user mode!)
/usr/bin/tlmgr: Initialization failed (in setup_unix_one):
/usr/bin/tlmgr: could not find a usable xzdec.
/usr/bin/tlmgr: Please install xzdec and try again.
tlmgr: Couldn't set up the necessary programs.
Installation of packages is not supported.
Please report to texlive at tug.org.
tlmgr: user mode database already set up in
tlmgr:   /home/alireza/texmf/tlpkg/texlive.tlpdb
tlmgr: not overwriting it.
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