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1 answer
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Ubuntu 22.04 with Qt6 - qmake: could not find a Qt installation of ''

In Ubuntu 22.04 after installing Qt6 using sudo apt install qt6-base-dev calling qmake results in an error message: qmake: could not find a Qt installation of '' or qmake: could not exec '/usr/lib/...
d99kris's user avatar
  • 486
1 vote
1 answer
10k views

qmake- No Such File or Directory after Installing QT5

OS: Ubuntu 22.04.1 KDE Plasma: 5.24.6 KDE Frameworks: 5.92.0 QT: 5.15.3 I installed QT5 from their website. Downloaded the installer and ran it. It installed QT in my Home directory and the qmake ...
Artillery's user avatar
  • 356
2 votes
1 answer
20k views

How to install qmake compiler on Ubuntu

I've been trying to compile VNote but couldn't figure out or find any proper way to install qmake. How can I install it with latest version?
developeryarkin's user avatar
3 votes
1 answer
30k views

qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. in ubuntu 20.04

How should I solve this problem in Ubuntu 20.04? Invalid MIT-MAGIC-COOKIE-1 keyqt.qpa.xcb: could not connect to display :0 qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "...
Mona Jalal's user avatar
  • 4,645
1 vote
1 answer
383 views

Newbie: How to use QMAKE to compile and install FaustLive on Ubuntu Studio 20.04? Can't create Makefile with qmake w/ linux-g++

FaustLive is an open source prototyping environment for Faust (open source, compiled audio programming language). Here is FaustLive's GitHub: https://github.com/grame-cncm/faustlive After successfully ...
CPLTarun's user avatar
  • 213
2 votes
1 answer
7k views

Project ERROR: Unknown module(s) in QT: script

So I've recently done a (fresh) installation of Ubuntu 20.04 LTS and I'm trying to install IBOview, which I had working on 18.04 LTS. As it describes in the README, and as I successfully did before, I ...
Isaac Leach's user avatar
5 votes
0 answers
14k views

How to install qmake? Ubuntu x64 17.04

I want to compile keepassx 0.4. It says I need qmake. I enter apt-get install qmake and nothing happens. Also I did sudo apt-get install build-essential cmake qtbase5-dev libqt5x11extras5-dev qttools5-...
mevsme's user avatar
  • 531
1 vote
3 answers
18k views

Project ERROR: Unknown module(s) in QT: positioning

I have error Project ERROR: Unknown module(s) in QT: positioning when I'm trying to build QT5 dependent project with qmake, I suspect that problem can be in old QT4 installation that was installed ...
mrgloom's user avatar
  • 890
1 vote
0 answers
757 views

How do I set the default qt to 5.0 or later?

I installed the latest version of qt in order to install eric6. Another dependency is pyqt. When I run python configure.py I get the following error: qmake: could not exec '/usr/lib/i386-linux-gnu/...
Sage Ambroski's user avatar
-4 votes
1 answer
13k views

How to install Qt

I am trying to build the Linux kernel using make xconfig but I get this error: $ make xconfig CHECK qt * Unable to find the QT4 tool qmake. Trying to use QT3 * * Unable to find any QT ...
pointer accurate's user avatar
0 votes
1 answer
252 views

QtWidget couldnt be configured for installation after running configure.py of PyQt5.5.1 source

I am triyng to install PyQt5 on xubuntu 14.04 but after the procedure completes successfully there is no QWidgets.so file in directory "/usr/lib/python3/dist-packages/PyQt5/" as well as other Qt*.so ...
TMSFLMN's user avatar
1 vote
0 answers
68 views

Shared libraries in phone apps

I am trying to port this (https://github.com/jobe-m/ownkeepass) keepass app to Ubuntu Phone. I am just at the beginning an want to include the needed libraries and plugins. I didn't write a UI yet. ...
moritz-weber's user avatar
0 votes
2 answers
2k views

:-1: error: The Qt version is invalid: qmake does not exist or is not executable

When I do deploy to Ubuntu device debug I get the following message :-1: error: The Qt version is invalid: qmake does not exist or is not executable
madhusudan1979's user avatar
1 vote
0 answers
2k views

Problem using qmake with Qt3Support

I am using Ubuntu 14.04.2 LTS on an x86_64 cpu. I try to create a Makefile using qmake with the flag QT += Qt3Support, but I get the answer "Project ERROR: Unknown module(s) in QT: Qt3Support" I ...
Staffan Rydblom's user avatar
2 votes
1 answer
5k views

Use g++-4.8 with Qt

I am trying to compile a Qt project that uses the "override" keyword, and thus needs GCC 4.8. I have installed GCC 4.8 on my Ubuntu 12.04 machine already, and it lives in /usr/bin as gcc-4.8 and g++-4....
Aaron Campbell's user avatar
0 votes
1 answer
667 views

No option for C++ in Qt Creator (for project)

I've installed the Qt 5.4.0 for Linux 64-bit (542 MB) on gnome ubuntu 14.04, When I started new project, I couldn't find the "Qt C++ Application" tab. There is option for C,QT,BLACKBERY....... But no ...
Akshay Birajdar's user avatar
1 vote
1 answer
973 views

How to run qmake files?

I'm new to Linux and have just started using Ubuntu. I'm trying to install QtScript Generator. Here is what it's README says: Step 1: Build the generator: cd path/to/this/project/generator, qmake ...
Girish's user avatar
  • 11
3 votes
1 answer
2k views

How build against qt 5.3.1?

Trying to build qt-creator v3.2.2 from source on Ubuntu 14.10. Fails. Qmake can't find qt5.3.1 $ qmake -r ... Project WARNING: QmlDesigner plugin has been disabled. Project WARNING: This plugin ...
Daniel Näslund's user avatar