Issue Description
When installing Archicad I encountered a warning: The disk image couldn't be opened. The operation couldn't be completed input/output error
Solution
The disk image couldn't be opened error in Archicad usually happens when the downloaded installation file is corrupted, incomplete, or incompatible with your operating system. Here are some steps to troubleshoot and resolve this issue:
- Check System Requirements: Ensure that your operating system meets the requirements for the Archicad version you’re installing.
- Verify the Download: Re-download the installer from the official Graphisoft website. Sometimes, downloads can be incomplete due to network issues, resulting in a corrupted installer.
- Use Disk Utility to verify the image: Open Disk Utility, click Images, then Verify. Navigate to the disk image and click Verify. If it verifies successfully, try opening it again
- Clear Download Cache: If you downloaded the file multiple times, older cached data might interfere. Clear the download cache in your browser, or download the file using a different browser or network connection.
- Try a Different Extraction Tool: If you’re using a third-party tool to mount the .dmg (disk image) file, try mounting it with the default macOS Disk Utility instead.
- Check Permissions: Ensure that you have the necessary permissions to open disk images. Right-click on the .dmg file, select "Get Info," and check the permissions section to confirm that you have access.
- Restart the System: Occasionally, a simple restart can resolve temporary issues affecting the disk image mounting.