Hi, ichoose the second solution and works!!

Thanks a lot Borys!!!

W

Il 27/09/19 13:41, Borys Jurgiel ha scritto:
Hi,

The bad news is you just discovered a regression in QGIS 3.4.11 - it's now
unexpectedly dependent on Qt 5.6 (what is probably not available in your
Ubuntu).

The good news is there is a quick workaround. You can either rollback to
3.4.10 or edit your 3.4.11 to disable that improvement (probably insignificant
for you, as it only concerns private repositories with redirections) and bring
back compatibility with Qt < 5.6. Just edit the file:

/usr/share/qgis/python/pyplugin_installer/installer_data.py

and comment out line 325:

#        self.mRepositories[key]
["QRequest"].setAttribute(QNetworkRequest.FollowRedirectsAttribute, True)

It should help now :)

Regards,
Borys


Dnia piątek, 27 września 2019 12:56:18 CEST Walter Lorenzetti pisze:
I try to clear QGIS3.ini file form custom settings and clear python
profile folder, but Now I otain this:

Si è verificato un errore durante l'esecuzione delle istruzioni
seguenti: pyplugin_installer.instance().showPluginManagerWhenReady()

Traceback (most recent call last):   File "", line 1, in   File
"/usr/share/qgis/python/pyplugin_installer/installer.py", line 252, in
showPluginManagerWhenReady
self.fetchAvailablePlugins(reloadMode=False)   File
"/usr/share/qgis/python/pyplugin_installer/installer.py", line 120, in
fetchAvailablePlugins     repositories.requestFetching(key)   File
"/usr/share/qgis/python/pyplugin_installer/installer_data.py", line 325,
in requestFetching
self.mRepositories[key]["QRequest"].setAttribute(QNetworkRequest.FollowRedir
ectsAttribute, True) AttributeError: type object 'QNetworkRequest' has no
attribute 'FollowRedirectsAttribute'

Versione Python: 3.5.2 (default, Jul 10 2019, 11:58:48) [GCC 5.4.0 20160609]

I tried to create a new profile but same error.

I'll try to reinstall qgis

W

Il 27/09/19 11:02, Borys Jurgiel ha scritto:
The debug output doesn't want to help, indeed...

Could you try to start a new fresh user profile? It would eliminate two
possible causes: all the user settings (especially the QGIS3.ini file) and
all user-installed Python stuff from
~/.local/share/QGIS/QGIS3/profiles/default/python

Borys

Dnia piątek, 27 września 2019 09:10:42 CEST Walter Lorenzetti pisze:
Hi Borys,

it's strange because Python Console working normally, also current
plugins installed.

I haven't many installed plugins, only DBManager and Quickmpaservices..

Running QGIS by shell, on bootstrap I obtain this:

Warning: void DBusMenuExporterPrivate::addAction(QAction*, int): Already
tracking action "Search QMS" under id 288
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action
Warning: QVariantMap DBusMenuExporterDBus::getProperties(int, const
QStringList&) const: Condition failed: action

and on opening plugins manager window this:

"<font color=\"red\">Si è verificato un errore durante l'esecuzione
delle istruzioni
seguenti:<br><tt>pyplugin_installer.instance().showPluginManagerWhenReady
()< /tt></font><br><pre><br>traceback.print_exception()
failed<br></pre>Versione Python:<br><br><br>Versione di
QGIS:<br>3.4.12-Madeira 'Madeira', 625767347a<br><br>Percorso
Python:<br>"

W

Il 26/09/19 19:59, Borys Jurgiel ha scritto:
Not really, except something wrong happens in Python.

The plugin manager window is C++ itself, however, when you click to open
it, it calls that Python function from your first error message to fetch
Python plugins from the repository. When the plugin list is ready,
Python
calls back the C++ API to open the window.

Apparently something bad happens in Python when it tries to fetch new
plugins. Are Python plugins generally work for you (hopefully you had
some enabled, at least Processing or DB Manager)? Does the
Plugins->Python console seem to work? Another idea is maybe running QGIS
from the command line would give some debug messages.

Borys

Dnia czwartek, 26 września 2019 15:46:12 CEST Walter Lorenzetti pisze:
Hi list,

I'm on QGIS 3.4.12 on Ubuntu desktop, today on opening the list plugins
window manager, I obtain the seguent error:

pyplugin_installer.instance().showPluginManagerWhenReady()

traceback.print_exception() failed

Any idea about it?

Thanks in adavance.

W
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