I'm at a complete loss and hoping someone can help. I'm used to the Visual Studio environment and setup, and QT is new to me. I'm running Linux Mint (debian 20.04) and installed qt5-default, and qtcreator. QT creator loaded fine the first time with no issues, however, after closing the application and a system reboot, it refuses to load. I've been scowering google and stack, I've found some similar issues but none of the solutions I've found so far have worked for me. Trying to run qtcreator from the terminal renders the following output:
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5: no version information available (required by qtcreator)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5: no version information available (required by qtcreator)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Network.so.5: no version information available (required by qtcreator)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: no version information available (required by qtcreator)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: no version information available (required by qtcreator)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5: no version information available (required by /usr/bin/../lib/x86_64-linux-gnu/qtcreator/libExtensionSystem.so.4)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5: no version information available (required by /usr/bin/../lib/x86_64-linux-gnu/qtcreator/libExtensionSystem.so.4)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: no version information available (required by /usr/bin/../lib/x86_64-linux-gnu/qtcreator/libExtensionSystem.so.4)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: no version information available (required by /usr/bin/../lib/x86_64-linux-gnu/qtcreator/libExtensionSystem.so.4)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Xml.so.5: no version information available (required by /usr/bin/../lib/x86_64-linux-gnu/qtcreator/libUtils.so.4)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Network.so.5: no version information available (required by /usr/bin/../lib/x86_64-linux-gnu/qtcreator/libUtils.so.4)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5: no version information available (required by /usr/bin/../lib/x86_64-linux-gnu/qtcreator/libUtils.so.4)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: no version information available (required by /usr/bin/../lib/x86_64-linux-gnu/qtcreator/libUtils.so.4)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: no version information available (required by /usr/bin/../lib/x86_64-linux-gnu/qtcreator/libUtils.so.4)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5: no version information available (required by /usr/bin/../lib/x86_64-linux-gnu/qtcreator/libUtils.so.4)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Network.so.5: no version information available (required by /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: no version information available (required by /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: no version information available (required by /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5)
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: no version information available (required by /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5)
qtcreator: symbol lookup error: /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5: undefined symbol: _ZTI26QAbstractDynamicMetaObject, version Qt_5_PRIVATE_API`
qtchooser/default.conf contained
/usr/lib/x86_64-linux-gnu/qt5/bin
/usr/lib/x86_64-linux-gnu/qtcreator
From the output, it would appear that there are two conflicting versions, however, being new to QT, I'm not exactly sure how or were I point it to the correct version. I appreciate any help!
Should we have a number of lines like:
qtcreator: /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5: no version information available (required by qtcreator)
Pointing to the root of Linux file system user and not to /home/user indicates we have installed Qt Creator (not really the latest Qt framework and not even Creator) with sudo apt install qtcreator which may come handy as an older IDE but not much else and prone to system errors due to many library soft link redirections etc.
First purge it out of the system:
sudo apt purge qtcreator
As original poster asked the problem is solved by completely removing package-installed Qt Creator and installing newer Qt complete framework with options with new Qt Creator by using Qt Maintenance Tool. For which you may want to enable the execution file attribute after it was downloaded:
chmod +x ~/Downloads/qt-unified-linux-x64-3.2.3-online.run
~/Downloads/qt-unified-linux-x64-3.2.3-online.run
P.S. Mind the above installs Qt Creator and the framework for the user but of course with sudo and pointing to the right location we could install Qt for the entire system as root somehow yet it is discouraged: https://forum.qt.io/topic/31366/install-qt-qt-creator-as-root Then why would sudo apt install qtcreator still be widely spread option? If so allowing the other user to access your files with some soft-link exercise will do.