Eu tentei adicionar vários repositórios de terceiros e recebo o mesmo erro com todos eles.
Quando tento adicionar repositórios de terceiros por meio da seção "Outros softwares" da GUI, posso abrir a caixa para adicioná-los, mas eles não são adicionados à lista.
Quando tento adicionar repositórios do Terminal, recebo a seguinte saída.
pal@pal-Vostro-3546:~$ sudo apt-add-repository -y ppa:teejee2008/ppa
[sudo] password for pal:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 358, in get_ppa_info
ret = get_ppa_info_from_lp(user, ppa)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 94, in get_ppa_info_from_lp
return get_info_from_lp(lp_url)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 88, in get_info_from_lp
return _get_https_content_py3(lp_url)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 112, in _get_https_content_py3
lp_page = urllib.request.urlopen(request, cafile=LAUNCHPAD_PPA_CERT)
File "/usr/lib/python3.5/urllib/request.py", line 153, in urlopen
capath=capath)
File "/usr/lib/python3.5/ssl.py", line 478, in create_default_context
context.load_verify_locations(cafile, capath, cadata)
ssl.SSLError: unknown error (_ssl.c:3172)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/bin/apt-add-repository", line 122, in <module>
shortcut = shortcut_handler(line)
File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 864, in shortcut_handler
ret = factory(shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 430, in shortcut_handler
return PPAShortcutHandler(shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 387, in __init__
info = get_ppa_info(self.shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 370, in get_ppa_info
_get_suggested_ppa_message(user, ppa))
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 327, in _get_suggested_ppa_message
lp_user = get_info_from_lp(LAUNCHPAD_USER_API % user)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 88, in get_info_from_lp
return _get_https_content_py3(lp_url)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 112, in _get_https_content_py3
lp_page = urllib.request.urlopen(request, cafile=LAUNCHPAD_PPA_CERT)
File "/usr/lib/python3.5/urllib/request.py", line 153, in urlopen
capath=capath)
File "/usr/lib/python3.5/ssl.py", line 478, in create_default_context
context.load_verify_locations(cafile, capath, cadata)
ssl.SSLError: unknown error (_ssl.c:3172)
Qual é o motivo desse erro e como posso resolvê-lo?