The 4.2.0 Alpha flat out won't get past the startup graphic before it crashes.

Well, it worked on my macbook, but I don't have access to any other Mac to test. Some things you could test:

* Does the latest nightly build run for you? See https://binary-factory.kde.org/job/Krit ... cOS_Build/
* Does it run if you start it as another user?
* Which version of macOS, and which hardware do you have?

Nightly build also crashes
macOS Sierra version 10.12.6
I've got a 2017 macbook

Someone else reports that 4.2.0 alpha doesn't run on El Capitan, but that's to be expected, Qt only supports 10.12 and up. They also report that 4.2.0 alpha runs fine for them on Mojave, so maybe there's a build switch changed that set the target platform to 10.12 and up.

The scripts did not change, but the logs show that some dependencies don't accept MACOS_TARGETS, which could made them not work on lower end systems.

feharrington wrote:Nightly build also crashes
macOS Sierra version 10.12.6
I've got a 2017 macbook

I tested krita 4.2 alpha and krita nightly-80c7775 on HighSierra (Sorry thats the oldest supported macOS I have for now) and both work fine.
Tested again on El Capitan just to be sure it doesn't work and as expected Qt send an error "Qt requires 10.12.0 or later".

I will try to setup a Sierra system and test on it.

In the mean time please make sure the downloads you made are correct and not corrupted. Sometimes net issues do happen and files get downloaded slighlty different causing weird crashes.

I redownloaded and installed both the Nightly build and the 4.2.0, both .dmg files, still crashing.

3 days later, same results, nightly build in all, nothing working.

feharrington wrote:3 days later, same results, nightly build in all, nothing working.

I am working on your case, but I do not have a Sierra hardware and installing a VM with Sierra is one of those strange OS that do not install at all. I have found a way to force install it, but I have yet to try it. you could however help me by running krita from the terminal and pasting the output here. even better it there is a crash log to look at.

To run ton terminal
- Mount dmg:
- Open Terminal.app
- on the terminal type

Code: Select all

/Volumes/krita/krita.app/Contents/macOS/krita

- press Enter/Intro

It should attempt to start and show some message as text in the terminal.

Paste the message here.

so sad, i use and love a lot Krita and i can't open the 4.2 release on my mac el capitan (10.11) . for many reason, i don't want to upgrade my os to 10.12.. is there a chance the next release will fix that?

No, that is not possible. The development framework we use, Qt, no longer supports El Capitan, so we cannot support it either: See https://doc.qt.io/qt-5/macos.html

qt.qpa.plugin: Could not find the Qt platform plugin "cocoa" in ""
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
4.2.1 Also continually keeps crashing. Not sure what I'm doing wrong. 4.2.1 took 5 hours to download as well. Every time I open Krita it prompts me to "reopen the application" since it crashed, and that seems to be a reoccurring issue. Not sure if that prompt is what's causing the problem and if I'll just have to wipe every Krita related file to fix it.

Yes, I'd start by removing Krita's settings and any local resources you might have (keep a backup, of course), removing the krita app bundles you might've gotten in /Applications and download a fresh copy of 4.2.1 from download.kde.org/stable/krita/4.2.1 and verify the md5sum. Start from clean and with a verified good download.

And I'd do a memory test because it's not normal that krita 4.2.1 keeps crashing on macOS.

I have been able to do a six hour painting sessions with just one crash, and that was because Qt crashes when switching macOS to a dark theme. (It had gotten evening and I wanted to switch from light to dark.)

I did a memory test, no issues were detected thankfully (I would certainly hope not this is a 2017 model, RAM shouldn't be damaged that soon)
I cleared what Kritas files of any kind that I could find and redownloaded 4.2.1 to no avail. Still immediately crashed. Unsure of where I can go from here.

I'm at a loss, too. Maybe starting Krita from teminal.app could give us some hints... Like, open the terminal app, then start Krita with /Applications/krita.app/content/macos/krita -- maybe that would print out some useful information.