Do you have more info about how this works and what 'network servers' it requires to work?thanks. Is it an option in preferences or something?The reference to iChat was audio converstation with the person on the other end while you are trying to diagnose their system.It is NOT the remote Mac generated audio.regarding iChat, last time i heard, iChat requires a dotMac account for most of its features.iChat works with AOL Instant Messaging (AIM) and you can get a free account. Best mac screen sharing app. Would like to know more, if it is an option. I don't know how iChat would work either since i think iChat would require someone to be at the destination computer to accept the connection. I've never heard of audio coming across the screen sharing window.
Several users have reported that they receive the error message below when they attempt to upgrade to macOS Catalina.
If it fails to meet the requirements, the app won’t be allowed to run on your computer. So, below are the two workarounds to open apps from unidentified developers in Mac OS X Yosemite and above. There are 2 ways you can allow apps from unidentified developers on Mac OS X and below, we’ll discuss both.
Error Message: This copy of the Install macOS Catalina application is damaged, and can’t be used to install macOS.
Are you having this problem? This article explains how you can fix this macOS application damaged error.
Please try each step one at a time until you resolve your issue.
So if you defrag SSD, you will perform thousands of write operations each time on the drive. It can speed up the degradation of a solid state drive and lead to its wear and tear. Disk analysis tool.
1. Please make sure that you are trying to update to macOS Catalina by going to Apple Menu > System Preferences > Software Update. Do not use any other non-Apple source, such as a third party web site.
2. Delete the damaged macOS version and retry to download again. The copy of the damaged file is located in /Applications folder. You can also use the Terminal to do this. Here is how:
- Open the Terminal app (Applications > Utilities) (you can use Spotlight)
- Copy and paste the following command
Macos Application Is Damaged And Can't Be Opened
- Press enter, you may have to enter your admin password
This will delete the app, now you need to re-download and install Catalina. Simply click the Upgrade Now button.
3. Try removing installinfo.plist. Here is how:
- Open Terminal and enter the followign command and press enter:
4. If still having this issue, this may be due to the invalid time on your Mac. You may have to correct this. Here is how:
- On your Mac, go to System Preferences > Date & Time. Is this showing the correct time and date? If not change it. And check the “set date and time automatically” box. Close this and retry again.
- If you are stuck before the OS installed (you are unable to access System Preferences), and then you may try the Terminal app to do this. Here is how:
- Click the Utilities menu (from the macOS Utilities menu) and select Terminal
- Enter the following command and hit enter
- date
- Is it the correct info? If not, change please by using the date {month}{day}{hour}{minute}{year} format. Brackets should be replaced with a two-digit number such as October 8, 2019 11:36 Am (today’s date and current time) would become date 1008113619
- Type this and press enter
- Now quit Terminal and try downloading Catalina again.
Mac Os X App
See also: Apple ID Settings problem