[Qgis-user] How to download QGIS for MacOs Ventura 13.5.2

[Garth Fletcher]

Hello Isabel,

As a security measure Mac OS refuses to run downloaded programs unless 
they are recognized ("signed") as an Apple product or an Apple 
registered product.

However, if you trust the download source, you can tell Mac OS to accept 
a downloaded program.

Hold the Control key down and click on the program - a menu will pop-up 
in which you select "Open".
You will then be asked to confirm permission.

Alternatively, right after you tried to run the program and got the 
"unable to open..." message you can use "System Preferences" and choose 
"Security & Privacy" which may offer you an option to permit the program 
it just refused to run.

You only have to do either once, thereafter Mac OS knows to trust that 
specific program - but if you download an update you will again have to 
authorize that new version.

The normal download sequence is
   1) download the .dmg,
   2) double click on the .dmg which should open a window showing the 
QGIS app and an "Applications" folder
   3) drag QGIS to "Applications" - this will copy QGIS into your main 
Applications folder
   4) control-click on QGIS in your Applications folder and chose "Open"
   5) give permission for it to be run
Thereafter you can treat it as any other trusted program...

Cordially,
Garth Fletcher

On 11/1/23 11:41 AM, Isabel Ittig-Boo wrote:
> Hi,
>
> Thanks for your attention and help🙏.
>
> The « error » text is the following:
>
> « Unable to open “QGIS” as Apple cannot verify that it does not 
> contain malware.
> This software needs to be updated. Contact the developer to learn more.
> Safari downloaded this file today at 16:14. »
>
> « Is the error when you double-click on the download .dmg file? »* I 
> can open it.*
> *
> *
> After downloading the .dmg file, I get the logo on the screen:image1.jpeg
> *
> *
>
>
> « Or is the error when you try to run QGIS? » *Yes, I think so* (see 
> photo, I cannot open it).
>
> image0.jpeg
>
> Do you have any idea what the problem is?
>
> Thank you.
>
> Best regards
>
> Isabel
> Switzerland
>
>> Le 25 oct. 2023 à 23:43, Garth Fletcher <garth at jacqcad.com> a écrit :
>>
>> Please provide exact text pf tje error message and when it happens.
>> Does the file download without errors?
>> Is the error when you double-click on the downloaded .dmg file?
>> Is the error after the .dmg file opens?
>> Or is the error when you try to run QGIS?
>>
>> Cordially,
>>
>> -- 
>> Garth Fletcher
>>