CsoundQt 7 not Running

Hello everyone!

Some weeks ago I downloaded CsoundQt 7 from the Github page and I worked with it without any problems but, all of a sudden, it just stopped running a few days ago, it simply crash at the beginning. I am using Windows 10 and I checked the windows log and I found this error:

Faulting application name: CsoundQt-d-cs7.exe, version: 0.0.0.0, time stamp: 0x68c6909c
Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000
Exception code: 0xc0000005
Fault offset: 0x0000000000000000
Faulting process ID: 0x36d0
Faulting application start time: 0x01dcd24e0e84e581

I have no idea of what that means and I wasn’t able to fix the problem so I went back to the old version of CsoundQt but after one day, it has stopped working as well. On the other hand, Cabbage is working fine.

Does someone have some idea on how to fix these problems or any suggestion?

Thanks,
Matteo

Hi!

As it worked before, can you guess what has changed in your system that might be causing it? Have you updated Windows? Antivirus?

Did you perhaps install separate Csound version? The latter might be a source for the crash as Windows is not very good in setting the right libraries to use.

The reason can be also elsewhere…

I have been trying to prepare a new build for Windows (beta4), but have not been successful - it crashes on stop and there is a memory error that I have not figures out yet. It is probably unrelated to your problem though.

tarmo

Kontakt Matteo Lubian via The Csound Community (<noreply@forum.csound.com>) kirjutas kuupäeval K, 22. aprill 2026 kell 15:13:

Hi Mr. Johannes!

Thanks for your answer. Yes, I did install Csound 7 prior to use the new version of QT. I didn’t do any updates of my OS. Do you think the issue can be related to it? I will try to uninstall it and see if this is the cause of the problem.

I tried to uninstall both Csound6 and 7 then installed them again; tried to install the new version of Visual C++ redistributable while deleting the previous ones but Qt is still not working. It is strange how every single version of it is not working now (the 0.9.8.1; the 1.1.1; the 7.0.0) while Cabbage is functioning as always. I literally have no clues right now. The 1.1.1 version starts and don’t crash but I am unable to see the interface, the task is running but I have no access to the GUI

Hi!

You said you recently installed the new version of Csound 7 and after that the crashes started to happen. I think it is the clash between Csound libraries included in CsoundQt7 pacakage and those in your system. Can you try one thing: rename the Csoundx64 and Csound7 folders (or what are they exactly) in your program files to something else, so they are not any more in the system path and try to run CsoundQt7 then.

If it works, you can delete all Csound related libraries from CsoundQt directory (.dll files, compare with the Csound installation) and rename you Csound folder back.

Not sure, if it helps but worth to try.
I am sorry, I am not very competent how things on Windows work… And it is super frustrating that Windows gives almost no feedback about the cause of the problem.

tarmo

Kontakt Matteo Lubian via The Csound Community (<noreply@forum.csound.com>) kirjutas kuupäeval N, 23. aprill 2026 kell 20:57:

1 Like

So, I changed the name of the Csound7 folder and apparently now Qt7 is working fine! I think it was a conflict between the libraries, as you said. I have tried to delete the Csound libraries from the Qt folder and renamed the Csound folder on Program Files again, but the “Entry Point not Found” error occurs, so I think I will go ahead with the portable version which include the Csound libraries.
Both the version of the program are working now, the 1.1.1 and the 7.0.0!! :partying_face:
I think the time to switch completely to Linux has finally come.

Thanks you very much for your help Mr. Johannes!

Kind regards,

Matteo

i agree that it is a good idea to move to linux …
if you like then, it is not very complcated to build csoundqt yourself
with qtcreator. then you are always on top of the development …
joachim

1 Like

Hi!

Thanks for the suggestion, I never tried to use QtCreator and my IT skills are not so developed but I can give it a try. Also, I am very happy with the actual CsoundQt frontend, I always use it for sound design and composition and it works very well!

Matteo

Hi!

By the way, I just made an Linux AppImage of beta4, available on
https://github.com/CsoundQt/CsoundQt/releases/tag/v7.0.0-beta4

I have problems with the Windows build still…

The AppImage is an all-inclded Linux package, just download, give a permission of an executable and run. No need to build or install anything.

For an easy Linux tryout I suggest UbuntuStudio - there is a lot of audio/video software already installed, a low latency kernel and nice interface: https://ubuntustudio.org/

For a tryout you even don’t need to install it, you can run it from an USB disk/flash disk (that makes it a bit slower of course but usable)

And if you like it, setting up a dual-boot system with Windows and Linux might be a good way to go. There are plenty of tutorials around how to do it.

Best!
tarmo

Kontakt Matteo Lubian via The Csound Community (<noreply@forum.csound.com>) kirjutas kuupäeval L, 25. aprill 2026 kell 13:39:

1 Like

Thanks for the updated on the development of CsoundQt and suggestions about Linux. I have already downloaded and tried UbuntuStudio and I really enjoyed it, really liked the KDE Plasma environment and the low latency the OS has.

Maybe the partition is a good idea for me at the moment, while adapting to Ubuntu, before I switch to it. Windows has become really frustrating and luckily I still have the 10 and not the 11!

Best regards,

Matteo