Ubuntu-19.10 Qt Lib Anaconda-Navigator Error - qt

Somewhat of a Ubuntu noob coming from windows, so i hope its an easy fix.
This is the error I get when I try to launch Anaconda:
Cannot mix incompatible Qt library (version 0x50905) with this library (version 0x50907)
Aborted (core dumped)
So my thought is that there is an environment variable that needs to be tweaked to point to a native version of qt that comes with conda. Any help would be great, i need line by line instructions if possible, still new.
Thanks

I was running a retro theme on my terminal that somehow interfered with the QT versions.

Related

MikTex - application failed to start because no Qt platform plugin could be initialized

While the installation of MikTex is working without a problem, trying to run the GUI of MikTex creates the following error on Windows:
I never had this problem on any windows version except for 11 and installing qt by hand involves reqistering (or paying) for qt.
Is there a simpler solution to that error?
Should a version of qt not be installed with miktex?
(Reinstalling did not fix the issue)

OMNET++ 5.1.1 and Qt

I am installing OMNET++ 5.1.1. However, during the installation, it is reported that:
configure: error: Cannot build Qt apps, probably due to missing or too old Qt packages. Make sure Qt development packages are installed and newer than Qt 5.4. You can disable Qtenv by setting the WITH_QTENV variable to "no" in configure.user.
Then I download and install the Qt from https://www.qt.io/download/. But it still report the same problem. How can I solve this problem ? Thank you.
I assume you're running some kind of GNU/Linux, because on Windows and macOS, the bundled Qt libraries should just work.
Try installing the Qt5 development packages using your distro's native package manager, then they should be detected.
If you can't, or they are too old, take a look in the configure.user file, and adjust the value of the QT_PATH variable according to the instructions there.
EDIT:
Since the OS was clarified: On Windows, you don't need to download Qt, or any other library separately. They are all bundled with the OMNeT++ distribution, and should work fine.
Just make sure you always use the included mingwenv shell to install and run OMNeT++. In it, the environment variables are set up as necessary.
If you are installing OMNET++ on windows make sure you extract the zip file to a folder other than "Program Files" and deactivate your antivirus during the installation process.

Segmentation fault (core dumped) for PCL example_nurbs_fitting_curve2d

I am trying to run the point cloud library example_nurbs_fitting_curve2d.cpp using curve2d.pcd file as data points on which curve is to be fit. After successfully building the project i tried to run the code from build folder using $ ./example_nurbs_fitting_curve2d curve2d.pcd. this curve2d.pcd file is in the build folder of the project. It appeared as Curve2d.pcd started loading like
loading curve2d.pcd
But then following error occured
Segmentation fault (core dumped)
Currently, i have Ubuntu 16.04 LTS installed, I am not sure if its some kind of programming error or am I missing something? Thank you in advance for your help and suggestions.
Using ubuntu 16.04, I tried debugging every line of code but couldn't find the reason of "Segmentation fault". Then i changed my Ubuntu version to 14.04 and reinstalled pcl 1.7.2. No segmentation fault error occurred. It generates output as expected.
I guess, its the updated version of c++ in ubuntu 16.04 which is not compatible with pcl versions.

How do I run qmake to install templar?

This is a borderline question but it's a bit programmy so I thought I'd try here instead of Super User. I am trying to install templar, so I downloaded the source and attempted to run qmake to install it. When I do, I get this message:
Project ERROR: Unknown module(s) in Qt: xmlpatterns
I don't have particular interest in learning about the internals of Qt, other than what is needed to compile templar. Is this message telling me that the module can't be found, or that Qt doesn't know what to do with it?
And how do I remedy this error?
I had the same error while building an other project using Ubuntu.
This worked for me:
sudo apt-get install libqt5xmlpatterns5-dev
Your Qt distribution wasn't build with the xmlpatterns module. You need to download a new distribution from the website. In the worst case you will have to compile it yourself but it isn't quite hard.

Running Qt Creator on CentOS release 5.8 - Cannot resolve 'dbus_get_version' in your libdbus-1

I succesfully build Qt 4.8 (without QtWebKit) on CentOS 5.8 (Qt Assistant and the demo's run fine). I also built Qt Creator 2.4.1 against Qt 4.8. I did not observe any errors during the process of building Qt Creator. However, when I attempt to run Qt Creator I receive the following error:
[root#localhost bin]# ./qtcreator
Cannot resolve 'dbus_get_version' in your libdbus-1.
Aborted
Has anybody encountered this error before? How did you fix it? Unfortunately upgrading to a better OS (such as Ubuntu) is not an option for me.
Thanks,
David
QtDBus module loads libdbus-1 library in runtime (via dlopen). That's why you don't have compile/link errors.
You can try either to upgrade dbus package (or whatever package contains libdbus-1.so) or use previous version of Qt.
(In Gentoo QtDBus-4.8 depends on dbus-1.2 and QtDBus-4.7.4 depends on dbus-1.0.2).

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