QWSSocket::connectToLocalFile could not connect:: Connection refused
Because "the Q_WS_* macros have been removed" in QT5
when I try to run export QT_QPA_EGLFS_FB=â€/dev/fb0″ and try to execute the application like "./test12 -platform eglfs " without giving -qws at the end I get this error:
"QWSSocket::connectToLocalFile could not connect:: Connection refused".
How can I resolve this problem?
Also im having some doubts like,
1. i refered other forums for this same problems and they asked like Have you played with LD_DEBUG-environmnt variable? . what is LD_DEBUG-environmnt variable? how can i configure that?
2. What is eglfs? how to configure/install it. Whether i have to configure/install in qt creator or in target?
3. why the error "QWSSocket::connectToLocalFile could not connect:: Connection refused". is coming. What is the meaning of this error.
Re: QWSSocket::connectToLocalFile could not connect:: Connection refused
Quote:
Originally Posted by
shivcena
Because "the Q_WS_* macros have been removed" in QT5
Totally unrelated.
The Q_WS_ defines were used to compile-time detect the window system (WS), e.g. X11, Windows, etc.
Qt5 only uses Q_OS_ defines to detect the operating system (OS), GUI integration is handled via QPA (Qt Platform Abstraction) plugins.
Quote:
Originally Posted by
shivcena
when I try to run export QT_QPA_EGLFS_FB=â€/dev/fb0″ and try to execute the application like "./test12 -platform eglfs " without giving -qws at the end I get this error:
"QWSSocket::connectToLocalFile could not connect:: Connection refused".
How did you get this? There is no QWS (Qt Window System) in Qt5.
Quote:
Originally Posted by
shivcena
1. i refered other forums for this same problems and they asked like Have you played with LD_DEBUG-environmnt variable? . what is LD_DEBUG-environmnt variable? how can i configure that?
http://www.bnikolic.co.uk/blog/linux-ld-debug.html
Quote:
Originally Posted by
shivcena
2. What is eglfs? how to configure/install it. Whether i have to configure/install in qt creator or in target?
EGL Full Screen is one of the QPAs used for embedded Linux.
It uses EGL to provide the setup for a single fullscreen window.
Your target needs to have EGL and your target's Qt needs to have the EGLFS QPA built and available.
Quote:
Originally Posted by
shivcena
3. why the error "QWSSocket::connectToLocalFile could not connect:: Connection refused". is coming. What is the meaning of this error.
The application cannot connect to the Qt Window Server, a graphics system provided by Qt4 for embedded Linux.
How you managed to get that from a Qt5 application is puzzling.
Cheers,
_
Re: QWSSocket::connectToLocalFile could not connect:: Connection refused
if i go to Qt creator Help-->About Qt Creator option it is telling that "Qt Creator 3.4.2 (opensource) Based on Qt 5.5.0 (GCC 4.9.1 20140922 (Red Hat 4.9.1-10), 64 bit) ) , So is this Qt version of 5 or 3
Re: QWSSocket::connectToLocalFile could not connect:: Connection refused
Quote:
Originally Posted by
shivcena
if i go to Qt creator Help-->About Qt Creator option it is telling that "Qt Creator 3.4.2 (opensource) Based on Qt 5.5.0 (GCC 4.9.1 20140922 (Red Hat 4.9.1-10), 64 bit) ) , So is this Qt version of 5 or 3
Which part of Based on Qt 5.5.0 is confusing?
Also there is not version of QtCreator based on Qt3.
Cheers,
_
