Application version
4.8 Beta
Platform
MacOS Big Sur
Printer
None
Reproduction steps
Actual results
Cura jumps couple of times then nothing happens
Expected results
Cura launches just as 4.7.1
Log file
No log file for version 4.8 present
Hi @Renha,
Thanks for reporting this. Unfortunately none of us has Big Sur installed as yet (we still use Catalina), so I would like some more information:
cd /Volumes/Ultimaker_Cura-4.8.0-beta-Darwin open Ultimaker\ Cura.appSince the icon jumps a couple of times as you said, I suspect that either Big Sur does not/cannot verify Cura as a safe application or there's something else obstructing it from launching.
When I do the above steps this is the Window I get, notifying me that the app is safe and nothing malicious was found:

I can confirm that it doesn't shows a similar dialog, and the app opens and closes.
I've noticed similar behavior with other applications using QT. there's a version of QT that relies on GL which I believe BigSur is Metal only.
I was very curious, so I installed Big Sur on an old MacBook I had lying around.
I do get the same dialog though (see below), but after the verification is successful the app indeed does not start. There's no error thrown whatsoever, so we're going to discuss this with the team and see how we can approach it. I don't think it is related to QT, since Cura 4.7.1 launches without issues.

Surely something must be logged in Console.app (the system-wide log, not the Cura log)
Hey, it works with the geos.py file provided for the 4.6.2 Big Sur fix (https://github.com/Ultimaker/Cura/issues/7970#issuecomment-659791641). Hopefully this helps.
I changed my geos.pyc file to the provided one and Cura launches fine for me.
Hmm, we did apply that patch though I think. Maybe this was not applied correctly but somehow manually or something?
Maybe, I need to take a look at the source code. Do you have any idea where this file is?
@fieldOfView , yes Console was showing an error on a /Users/$USER/Library/Logs/cura/stderr.log file from 24 Oct, so I didn't bother looking into it, because that was 2 days before I upgraded. Once I navigated to its path though I saw it had changed like 1 min ago.
And, indeed, the problem is that geos cannot be found:
OSError: Could not find lib c or load any of its variants [].
I can confirm that copying geos.py from 4.7.1 to 4.8 Beta works on Big Sur
Thanks! I never downloaded 4.7 because of the bug with curves. Good to see that it works.
This fixed the issue for me as well. Adding geos.py to Ultimaker Cura.app/Contents/Resources/lib/python3.5/shapely/ restored normal app launch under Big Sur.
We have also applied the patch on our build system. Cura v4.8 stable will have the fix and will, thus, launch without issues on Big Sur. Thank you all!
Thanks for your help!
Thank you!
How about Yosemite?
David
iPad iOS 14.1 (18A8395)
On Oct 28, 2020, at 1:59 PM, Evangelos Trantos notifications@github.com wrote:

We have also applied the patch on our build system. Cura v4.8 stable will have the fix and will, thus, launch without issues on Big Sur. Thank you all!—
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We weren't aware that there was a problem when running on MacOS 10.10 Yosemite?
What are your symptoms, Truegret? Do you have any logs or crash log?
As far as I recall, Yosemite is the oldest version we currently support, so all should be working fine there. The furthest version I can go back to is El Capitan 10.11, where I never encountered any issues with the .dmg or the .app.
This issue has been automatically closed because there has been no response to our request for more information from the original author. With only the information that is currently in the issue, we don't have enough information to take action. Please reach out if you have or find the answers we need so that we can investigate further.
Please consider re-opening this issue.
Unless you expect me to wait until Ultimaker-Cura 5.0.0.
Yeah, this needs to be opened
Does this issue also happen with the 4.8 stable? Or just with the beta?
@evtrados did some work on this before stable, iirc.
I will be able to check that later today, probably someone will be faster
The issue is solved in stable version of Cura 4.8, thank you
Still not working for me on Big Sur, and the current website download
Cura 4.8 (release) launches for me on Big Sur, but results in an empty grey window.
The console has the following output:
Nov 23 11:48:33 MacBook com.apple.xpc.launchd[1]: Coalition Cache Hit: app<application.nl.ultimaker.cura.8636044756.8636044763(501)> [41493]
Nov 23 11:48:37 MacBook cura[90410]: getattrlist failed for /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver: #2: No such file or directory
Nov 23 11:48:37 MacBook cura[90410]: getattrlist failed for /System/Library/Extensions/GeForceGLDriver.bundle/Contents/MacOS/GeForceGLDriver: #2: No such file or directory
Nov 23 11:48:37 MacBook cura[90410]: getattrlist failed for /System/Library/Frameworks/OpenGL.framework/Resources//GLRendererFloat.bundle/GLRendererFloat: #2: No such file or directory
Do you get the same symptom? Anything in the logs?
Do you get the same symptom? Anything in the logs?
It doesn't create a log, it hasn't even created a '4.8' directory in /Users/plasma/Library/Application Support/cura/
Icon just bounces and never launches, I also tried removing all the older cura directories from the above link. Still does nothing.
Plasma
There are more logs than Cura logs. Something must be logged in Console.app (the system-wide log, not the Cura log)
Never mind I am an idiot! :( Looks like at some point I renamed "Ultimaker Cura" to just "Cura" so after installing 4.8 my shortcut was still trying to launch 4.6, which I realised after applying the geos.py fix above. I am now working on 4.8, apologies for the mistake.