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Getting "error: Failed to initialize NSS library" just by running dnf

asked 2016-06-09 05:32:15 -0500

phu004 gravatar image

Hi guys,

I think i have messed up my file system (64bits fedora 23) by running conda as sudo, now every time I run "dnf" on the console i get the following:

error: Failed to initialize NSS library
Traceback (most recent call last):
File "/bin/dnf", line 57, in <module>
    from dnf.cli import main
File "/usr/lib/python3.4/site-packages/dnf/", line 31, in <module>
    import dnf.base
File "/usr/lib/python3.4/site-packages/dnf/", line 30, in <module>
    from dnf.yum import history
File "/usr/lib/python3.4/site-packages/dnf/yum/", line 31, in <module>
    import dnf.rpm.miscutils
File "/usr/lib/python3.4/site-packages/dnf/rpm/", line 22, in <module>
    from . import transaction
File "/usr/lib/python3.4/site-packages/dnf/rpm/", line 14, in <module>
    import rpm
File "/usr/lib64/python3.4/site-packages/rpm/", line 39, in <module>
    from rpm.transaction import *
File "/usr/lib64/python3.4/site-packages/rpm/", line 5, in <module>
    from rpm._rpm import ts as TransactionSetCore
ImportError: cannot import name 'ts'

Could any one suggest what might have gone wrong here? Thanks in advance!

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Good morning dnf

gobigobi66 gravatar imagegobigobi66 ( 2016-06-09 21:05:53 -0500 )edit

got the same issue, I installed glibc.i686 just before.

kappaloff gravatar imagekappaloff ( 2016-06-13 08:42:04 -0500 )edit

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answered 2018-07-17 04:44:55 -0500

boyd gravatar image

Fedora 23 is end of life a long time ago so a system upgrade (from bootable media) will fix your problem and give you a way better fedora experience. That said...

The following will show broken dependencies on your system

rpm -Va --nofiles --nodigest

When you see what libraries packages are missing, you will have to go to another system, download the files from a mirror (where you can still find F23) and manually install with rpm. Dump the files in a directory and run:

rpm -Uvh --force *.rpm

This may take some work and you may have to install a few files one by one to solve dependency issues, but its fixable. Otherwise please just upgrade your system. Don't work with old unsupported software.

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Asked: 2016-06-09 05:32:15 -0500

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Last updated: Jun 09 '16