Qt debugger stuck when running on Mac - xcode

I updated my Xcode yesterday. Now I cannot debug code in Qt, as it is always stuck "running". I'm using LLDB on Mac OS X 10.10.5 and Xcode 7.0.

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Scilab compatibility with Mac OS Monterey

I am successfully running Scilab 6.1 on Mac Os Catalina. According to the excellent webpage
https://www.utc.fr/~mottelet/scilab_for_macOS.html
6.1.1 runs on Mac OS Big Sur
However, I can find no mentions on that page (or scouring the internet) whether 6.1.1 runs on Mac OS Monterey. Before upgrading from Catalina, I need to know this.
Can anyone confirm successful operation of 6.1.1 on Monterey?
thank you
I was reported that the macOS M1 build works on Monterey. Likely, the Intel build should also work, even if you may have a warning at launch (concerning the OS version).

Application compiled with XCode 12.3 will not launch on M1 Chip machine

I am a developer who develops on 10.15.7 on an Intel-based MacBook Pro for Mac OS 10.12.2 - 11.1. I do not have an M1 machine to test with. I have a program that I compiled as a universal app using XCode 12.3. A user with an M1 Mini reports that it will not launch. It shows in Activity Monitor as running, but I know it did not run because it did not produce a debugging file I added to it to test. If I compile it for the development machine (i.e. not universal), it still does not launch.
If I compile the exact same project—with NO changes— in XCode 11.7, it runs perfectly on the Mini in Rosetta mode.
Any idea what the problem could be?

How do I download Xcode 9 on a mac running 10.11.6 (El Capitan)?

I am taking a course on programming with flutter, and it needs Xcode 9 or higher. My mac is currently running 10.11.6 and it can't update any more. I was wondering if there was any way to get Xcode 9 on my mac?
Xcode9 needs OS X 10.12.6 or higher.
The latest Xcode you can install on OS X 10.11.6 is Xcode8 (version 8.2.1).
Here you can check which minimal OS version is required by which version of Xcode:
https://en.wikipedia.org/wiki/Xcode#Version_comparison_table
Also for downloading any older version of Xcode you need a developer account (free account is enough) and you can download from here:
https://developer.apple.com/download/more/
Unfortunately I don't see older than Xcode9 there but I found Xcode 8.2.1 here
Xcode is only needed to run your Flutter apps on iOS devices and simulators. But to develop Flutter apps, you use another IDE your Mac can probably run: Android Studio, Visual Studio Code or Intellij IDEA.
You can still test your app using an Android emulator or device.
If you do need to upgrade, you can download a Sierra, High Sierra or Mojave patcher from dosdude1's website, and install a later version of macOS on your unsupported Mac (if your mac is in the list of supported devices, and I haven't tested it, so do it at your own risk).

Is a crash due to Xcode 4.6 build settings?

A user has a mini on OS X 10.5.8 and an iMac on 10.6.8. My app crashes immediately on launch with a SIGSEGV error. In trying to find the crash cause, I found one post saying that XCode 4.6 can't compile for those OSs.
What's the oldest OS I can support?
Is there a build setting I can use, or must I try to load an earlier version of Xcode? This is my first Mac app, so I'm struggling still.

Build app so it can run on different versions of OS X

I have an app that needs to be run on MAC OS X 10.5,10.6,10.7
I'm using XCode 4.02 and iOS SDK 4.3. My build settings are 10.6 MAC OS X, and Deployment target is 10.5.
Is this the right way to do it, or I should use the Mac OS X 10.5 SDK? I can't find it, I have only 10.6.
Right now my application runs on 10.5, but not properly.
If you are a serious apple developer, you should upgrade to Lion. You should also be using the latest SDK, OSX 10.7 that comes bundled with the latest version of XCode 4.2.X (It's free from the MAC APP Store). If you need to have your app run on previous versions of OSX, the correct way to do this is to set the "Deployment Target" (found in the build settings) to 10.5.
XCode/SDK updates are just like any other software update, they contain bug fixes and more importantly security patches, so you should ALWAYS be using the latest versions.

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