Desperate call for help...

[Miyak]

Application output.doc

Hello,

Im currently working in a chemistry project using Qt under Linux. I used to work under Fedora 14 and just yesterday I switched to the most recent Kubuntu. My application is able to open some files and plot out some molecules using OpenGL. Worked without problems under Fedora, now that I switched to Kubuntu, my application crashes when I open the same files I opened under Fedora.

I've attached the Application output I get (which I also didnt get under Fedora).

I hope someone can make something out of that and help me out here, Im sure it must be something noobish slipping past me.

Thank you very much!


Kayim

[ChrisW67]

What attached output?

[Miyak]

It's on a line just above "Hello,"

Edit:

Had to attach it as a .doc file

[wysota]

Did you rebuild your program after moving it to Kubuntu?

[Miyak]

yes, I deleted the object files, the .pro file and the .pro.user file. Rebuilt from the new system.

[wysota]

What gfx card do you have and what drivers do you have installed for it?

[Miyak]

ATI Technologies Inc RS690M [Radeon X1200 Series]

How do i find out which drivers I have installed? As you may have deduced by now im a Linux neophyte, hehehe.

Browsing through Synaptic I see I got 4 ATI display drivers Installed, which are:

X.Org X server -- ATI Mach64 display driver 6.8.2-3build2
X.Org X server -- ATI r128 display driver 6.8.1-3build1
X.Org X server -- AMD/ATI display driver wrapper 1:6.13.1-1ubuntu5
X.Org X server -- AMD/ATI Radeon display driver 1:6.13.1-1ubuntu5

All of which were automatically installed.

Im working on a Dell Inspiron 1521.

[SixDegrees]

Your error message indicates that the program is looking for the ibus library but can't locate it. Try installing the ibus package and see if that helps.

[Miyak]

I installed every ibus package I found on synaptic and it still crashes on me :S
application output 2.doc

It did something though, as the new application output is shorter.

I have a meeting tomorrow where Im supposed to show this app, so I might have to go back to Fedora for that, but I really like Kubuntu better xD

Last night a cousin told me that I should've installed Kubuntu and THEN Windows 7, but I did it the other way around. Still, that couldnt be the cause my app is crashing, could it?

[SixDegrees]

Here's where your error is reported:

Bus:pen: Can not get ibus-daemon's address.
IBusInputContext::createInputContext: no connection to ibus-daemon

Apparently, Ubuntu doesn't start the ibus daemon at startup; there are several complaints about this scattered across the Web.

Here's an article on how to make it do that.

Restart and try again.

[Miyak]

thank you so much, that did take out a bunch of the application output errors...still it crashes though lol.

Starting /home/kayim/Downloads/Fuente-build-desktop/Fuente...
(2337) KSharedDataCache::Private::mapSharedMemory: Opening cache "/var/tmp/kdecache-kayim/icon-cache.kcache" page size is 4096
(2337) KSharedDataCache::Private::mapSharedMemory: Attached to cache, determining if it must be initialized
(2337) KSharedDataCache::Private::mapSharedMemory: Cache fully initialized -- attached to memory mapping
(2337) KSharedDataCache::Private::mapSharedMemory: 6774784 bytes available out of 10485760
(2337) KSycocaPrivate:penDatabase: Trying to open ksycoca from "/var/tmp/kdecache-kayim/ksycoca4"
kfilemodule(2337)/kdecore (services) KMimeTypeFactory:arseMagic: Now parsing "/usr/share/mime/magic"
kfilemodule(2337)/kdecore (services) KMimeTypeFactory:arseMagic: Now parsing "/home/kayim/.local/share/mime/magic"
The program has unexpectedly finished.
/home/kayim/Downloads/Fuente-build-desktop/Fuente exited with code 0

That's what it still says :S

Sorry to keep bothering, but Im going crazy cause it makes no sense to me xD

[SixDegrees]

I'm at a loss. You could try moving /home/kayim/.local/share/mime/magic, or the entire .local subdirectory, out of the way, followed by another restart. At this point, though, I'd say running the program in a debugger would be more fruitful, as there are no more explicit error messages.

You aren't using QCoreApplication instead of QApplication by any chance? See here for a similar error message.

[Miyak]

Okay, if I run the program under debugging in Qt Creator it gets to the point where I can watch and move the molecule I loaded, but crashes if I try to exit the application.

I thought I wasnt using QCoreApplication but I can see there's a line which says Function: QCoreApplication. The problem is I didnt write the entire program, it was somewhat of an inheritance, so is there a way I could search the whole bunch of files to find which one is using QCoreApplication? Also, how can I post the debugging information to check if it's any help?

thank you

Edit:

It also says it's stopped because of a segmentation fault by signal SIGSEGV