[РЕШЕНО] Не открывается хелп в Qt Creator

Доброе время суток арчеводы!

Тут третьего дня у меня отчего-то не открылся qt хелп по f1 из Qt Creator.
В консоль сыпал такое:

$ qtcreator
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtquickcontrols.qch-38394720-29' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtnfc.qch-38394720-26' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtscript.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwebengine.qch-38394720-11' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtgraphicaleffects.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtbluetooth.qch-38394720-26' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtopengl.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtgui.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qdoc.qch-38394720-32' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtandroidextras.qch-38394720-26' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtscripttools.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/activeqt.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtpositioning.qch-38394720-26' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtcore.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtsvg.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtquick.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qthelp.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtmultimediawidgets.qch-38394720-29' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtdesigner.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwebkit.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtxml.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtmultimedia.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtsensors.qch-38394720-29' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtconcurrent.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwidgets.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtenginioqml.qch-38394720-20' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtprintsupport.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtassistant.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtquickdialogs.qch-38394720-29' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtxmlpatterns.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtquicklayouts.qch-38394720-29' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qttestlib.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwebkitexamples.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtqml.qch-38394720-35' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtlocation.qch-38394720-11' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwebenginewidgets.qch-38394720-11' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtx11extras.qch-38394720-29' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/activeqt.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qdoc.qch-38394720-33' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qmake.qch-38394720-30' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtandroidextras.qch-38394720-27' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtassistant.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtbluetooth.qch-38394720-27' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtconcurrent.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtcore.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtdbus.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtdesigner.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtdoc.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtenginio.qch-38394720-21' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtenginiooverview.qch-38394720-21' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtenginioqml.qch-38394720-21' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtgraphicaleffects.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtgui.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qthelp.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtimageformats.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtlinguist.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtlocation.qch-38394720-12' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtmacextras.qch-38394720-27' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtmultimedia.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtmultimediawidgets.qch-38394720-30' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtnetwork.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtnfc.qch-38394720-27' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtopengl.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtplatformheaders.qch-38394720-12' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtpositioning.qch-38394720-27' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtprintsupport.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtqml.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtquick.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtquickcontrols.qch-38394720-30' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtquickdialogs.qch-38394720-30' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtquicklayouts.qch-38394720-30' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtscript.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtscripttools.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtsensors.qch-38394720-30' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtserialport.qch-38394720-30' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtsql.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtsvg.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qttestlib.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtuitools.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwebchannel.qch-38394720-12' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwebengine.qch-38394720-12' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwebenginewidgets.qch-38394720-12' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwebkit.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwebkitexamples.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwebsockets.qch-38394720-21' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwidgets.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtwinextras.qch-38394720-27' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtx11extras.qch-38394720-30' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtxml.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtxmlpatterns.qch-38394720-36' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qt3dcore.qch-38394720-3' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qt3drenderer.qch-38394720-3' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtcanvas3d.qch-38394720-3' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection '../../../../../usr/share/doc/qt/qtquickextras.qch-38394720-3' is still in use, all queries will cease to work.

(qtcreator-bin:4245): GLib-ERROR **: Creating pipes for GWakeup: Слишком много открытых файлов

/usr/bin/qtcreator: line 2:  4245 Ловушка трассировки/останова                              (core dumped) QT_LOGGING_TO_CONSOLE=1 qtcreator-bin $@
Как понятно из вывода, в конце креатор крашится.
Пробовал переставлять qt5-doc и qtcreator. Пробовал откатить на версию назад. Не помогло.
Есть у кого-нибудь что-нибудь от этой беды?
Спасибо!
Разобрался сам.
Удалил файл ~/.config/QtProject/qtcreator/helpcollection.qhc
 
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