topic Re: 28 Silicon not downloading fully/damaged download can’t open in Installation & update

28 Silicon not downloading fully/damaged download can’t open

MacDesign — Wed, 27 Nov 2024 01:29:00 GMT

I downloaded 28 last week and was having an issue with DWG not being able to be opened or save-as by Archicad. Opted to DELETE 28 and re-downloaded the DMG. Now the when trying to open the installer DMG it keeps popping up with “Archicad.dmg is damaged and can’t be open” error so no more 28 for now, back to 27…. Tried downloading from both Safari and DuckDuckGo browsers.

Operating system used: Mac Apple Silicon Sequoia 5.1

Re: 28 Silicon not downloading fully/damaged download can’t open

Istvan Lengyel — Thu, 28 Nov 2024 05:37:23 GMT

I downloaded this Installer with Safari, with Chrome. I could open the downloaded dmg.

Please try these:

1. Restart your Mac, download the installer dmg again, can you open the dmg?

2. Can you try it on another Mac?

3. Download INT AC 28 installer dmg, can you open the dmg?

4. Download USA AC 27 installer dmg, can you open the dmg?

Re: 28 Silicon not downloading fully/damaged download can’t open

chandak76 — Wed, 14 May 2025 06:22:21 GMT

Has anyone been able to get this to work, I've tried everything with no luck.

Macbook Pro

2.3GHz 8 Core Intel Core i9

16GB 2667 MHz DDR4

1TB SSD

Sequoia 15.5

Re: 28 Silicon not downloading fully/damaged download can’t open

Istvan Lengyel — Wed, 14 May 2025 06:31:54 GMT

Did you try the other installer dmg files?
None of them worked?

Re: 28 Silicon not downloading fully/damaged download can’t open

chandak76 — Wed, 14 May 2025 06:49:55 GMT

Yes, tried downloading using safari and chrome with no luck.

The installer is 3.43GB

Re: 28 Silicon not downloading fully/damaged download can’t open

Istvan Lengyel — Wed, 14 May 2025 08:20:03 GMT

I asked my colleague, he tried the USA 28 dmg on his Mac OS 15.0.1.

He downloaded it, he could open it.

Can I ask one more test?
Please try to download the Goodies Installer's dmg from here: https://graphisoft.com/us/downloads/goodies
Can you open that dmg?

Re: 28 Silicon not downloading fully/damaged download can’t open

chandak76 — Fri, 16 May 2025 17:49:12 GMT

This is what i get when i use the installer from goodies

Re: 28 Silicon not downloading fully/damaged download can’t open

Barry Kelly — Fri, 16 May 2025 06:23:26 GMT

Did you download the correct operating system version - Intel or Silicon?

If you have the correct version, check that you are installing to the correct folder.

Barry.

Re: 28 Silicon not downloading fully/damaged download can’t open

Istvan Lengyel — Fri, 16 May 2025 06:29:55 GMT

It is Ok. It means, this smaller dmg file could be downloaded, your Mac OS does not show "damage" error for it.
You got "damage" error for the Archicad Installers' dmg files.

Hm.

Quite strange.

We found information about "damage dmg" errors:

Please, check these, maybe one of them help you:

When you see an error like "damage during mount" on macOS (often worded as "The disk image is damaged and can't be opened" or something similar), it generally refers to an issue encountered while mounting a disk image (DMG) file. This can happen for several reasons:

🔧 Common Reasons for "Damage During Mount" Errors on macOS

1. Corrupted DMG File

The DMG file you're trying to open might be incomplete or corrupted, especially if downloaded from the internet.
✅ Solution: Re-download the file from a reliable source.

2. Gatekeeper Blocking the App

macOS Gatekeeper may block apps or disk images that aren't signed with a trusted Apple Developer ID.
✅ Solution: Try bypassing Gatekeeper (Right-click → Open, or use sudo xattr -rd com.apple.quarantine <path>).

3. Quarantine Attribute

Files downloaded from the internet are tagged with a "quarantine" attribute that may prevent them from opening.
✅ Solution: Remove the quarantine attribute with Terminal:

4. Filesystem or Permission Errors

Your drive might have file system issues or permission problems.
✅ Solution: Run Disk Utility and use First Aid to check and repair your disk.

5. Incompatibility or OS Version Issues

The DMG may have been created with a newer version of macOS or in a way that's incompatible with your system.
✅ Solution: Check if your macOS version supports the image. Try opening on a different system.

6. Security & Privacy Settings

If apps from unidentified developers are blocked, this might affect DMG files.
✅ Solution: Go to System Settings > Privacy & Security > Security, and check if there's an "Allow anyway" button.

7. Bad Sectors or Hardware Issues

If your disk has bad sectors, files can be damaged even after successful downloads.
✅ Solution: Backup your data and run hardware diagnostics (Apple Diagnostics or Disk Utility).

🧪 To Diagnose Further:

You can try mounting the DMG via Terminal for more detailed error messages:

bashCopyEdithdiutil attach /path/to/file.dmg

This might give you a clearer explanation than the Finder dialog.

bashCopyEditxattr -rd com.apple.quarantine /path/to/file.dmg

Re: 28 Silicon not downloading fully/damaged download can’t open

Barry Kelly — Fri, 16 May 2025 07:17:30 GMT

I suspect that @chandak76 does not have Archicad installed in the default program folder path.

The installer which seems to be running (so it must be for the correct operating system I assume - I know nothing about Macs).

So they will need to browse for the correct folder path for where Archicad has been installed.

I assume the installer just looks for the default folder path.

Barry.

Re: 28 Silicon not downloading fully/damaged download can’t open

Istvan Lengyel — Fri, 16 May 2025 09:47:33 GMT

The last answer from user was about downloading the Goodies Add-On Installer's dmg.
We only wanted to check, whether any of downloaded dmg could mount.

It was successful.

The original error was:

The user downloaded the AC 28 USA dmg, but it could not mount, because the Mac OS wrote, it was damaged.

But we tried on other computers, it is not damaged.

So, we try to figure out, why the user cannot open (mount) the downloaded dmg.

Re: 28 Silicon not downloading fully/damaged download can’t open

chandak76 — Fri, 16 May 2025 10:01:27 GMT

Could the issue be with Macbook? I tried installing Archicad 23 and i get the same damaged error message

Re: 28 Silicon not downloading fully/damaged download can’t open

Istvan Lengyel — Fri, 16 May 2025 10:44:41 GMT

It is sure according what we tried, your computer has some specific problem.

I would say, it would be good to reinstall the Mac OS, but I know, it is not too comfortable step.

Did you try the offers in the list what I wrote today?
For example trying to mount from terminal?

Re: 28 Silicon not downloading fully/damaged download can’t open

chandak76 — Fri, 16 May 2025 12:50:14 GMT

Haven't tried all of the them, will try this evening and revert back

Re: 28 Silicon not downloading fully/damaged download can’t open

chandak76 — Mon, 19 May 2025 05:58:46 GMT

Tried with no luck, will try reinstalling the OS again.

Have now installed on windows so i can do some work

Re: 28 Silicon not downloading fully/damaged download can’t open

Barry Kelly — Mon, 19 May 2025 06:19:16 GMT

It seems to me that you could download the installation file OK - the original poster could not even do this.

You must have been able to as you are running the installer.

It is trying to find Archicad in a default installation folder path.

It seems to me that maybe your Archicad is installed somewhere else - not in the default folder?

Check that you are installing the update to where Archicad is actually installed.

Barry.

Re: 28 Silicon not downloading fully/damaged download can’t open

chandak76 — Mon, 26 May 2025 08:43:48 GMT

Hi,

I tried some of the recommendations above and the issue seemed to be bad sectors, after running disk utility, i was finally able to install archicad 28.

Much appreciated to everyone that assisted.

Re: 28 Silicon not downloading fully/damaged download can’t open

Istvan Lengyel — Mon, 26 May 2025 08:45:48 GMT

Hi,

Oh. I didn't dary say that maybe hardware problem.

But I am happy, you could install Archicad 28.