Re: Qt 4 installation and configuration woes

[David McLean]

Thanks Tim, Jean-Paul, and Barry for your input! I've managed to set various variables appropriately but It does concern me that this didn't happen at the time of installing the packages. I've still not got qt4 building successfully yet. Let me break down the entire saga as it has happen thus far. I have a project that compiles and runs fine on my laptop under Ubuntu (qt4 v. 4.5.2). I copied to my SL box (SL 5.4) and qt4 will not recognize my project. I somewhat understand this since the project was created in a newer version. I also copied my binary file which was built under Ubuntu, and it wouldn't run either. ( "[r...@....]# ./myprog" ) This is where I thought that maybe if I just re-built it under SL it would run. That's where I ran into the variable issues. I resolved those manually, and I can build but I get the following error: Qt: Session management error: Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed Segmentation fault So then I had the bright idea to just un-install completely, download the latest greatest from Trolltech and go from there. Actually I wanted the same version that was on my laptop but I couldn't find anything but the latest version to download. I followed the directions exactly as stated from the ./configure. (by the way, this is not just qt4, this was qtcreator IDE which seems to be a nice environment) So after installation, everything seemed great. The new QtCreator opens my project, has all my files, etc but when I try to build within QtCreator, I get the following error: No valid Qt version set. Set one in Tools/Options Error while building project controller_v_0-01 When executing build step 'QMake' Canceled build. Now I go and try to do as I'm told, but I can't change the Qt in PATH option. I'm really thinking I'm completely missing something somewhere. I feel like these issues would not be here if I had installed properly. Any ideas? Thanks in advance! Dave Tim Edwards wrote: On 04/03/10 01:30, David McLean wrote: Hi all, Typically, I try to figure these type issues out myself but I'm currently under a time crunch, hence the email blast! Now to the point: Has anyone had any issues with installing Qt4 and getting it working properly? It seems as though the basic Qt4 package does not include the make utility "qmake". Therefore I tried uninstalling it and downloading direct from Trolltech and building it from source which still leaves me some issues. I do appear to have qmake but I seem to have some environment variable issues. When I try to compile a project, I get the following error response: [r...@dhcp...]# qmake Could not find mkspecs for your QMAKESPEC(linux-g++) after trying: /usr/local/Trolltech/Qt-4.6.2/mkspecs Error processing project file: /home/dmclean/Desktop/VIIBRE/StageController/controller_v_0-01/controller_v_0-01.pro Looks like I've got something looking in the wrong place but the "/usr/local/Trolltech/Qt-4.6.2/mkspecs" is the correct path to the "mkspecs" directory. I do not have a lot of experience with system/environment variables. Has anyone experienced anything similar to this? yum whatprovides "*/qmake" >From the output of that you can see it looks like qt4-devel is needed: yum install qt4-devel Tim Edwards -- David L. McLean Research Automation Engineer 6805.4 Stevenson Center VU Station B 351807 Nashville, TN 37235-1807 Ph: 615.343.4124 Fx: 615.322.4977 www.vanderbilt.edu/viibre david.l.mcl...@vanderbilt.edu