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Error Code 102 Mac – What Is It + How to Fix It [Solved]

What Is Error 102?

Error 102 is a generic error code for a disk error on Mac computers. It usually indicates a problem with the disk drive, such as a corrupted file or a problem with the disk itself. Users have reported it to be caused when updating software or versions of macOS. If you see this error code, you will usually need to restart your computer to fix the problem.

Keep reading this article to find out more on Error 102 and how to fix it.

Error 102 Mac - What Is It + How to Fix It [Solved]

Error 102 Details

Name Error 102
Type Kernel Panic Error
Short Description Caused by incompatible third-party software
Symptoms Pop-ups with messages An error has occurred. An error occurred while downloading the updates (102). An error has occurred. The operation couldn’t be completed. (NSURLErrorDomain error -1102.)(102) Could not connect to the server./td>
Fix Tool Try this fix to repair your Mac from errors and optimise system performance:



What Is Causing Error 102 on Mac?

Error 102 on Mac is typically caused by incompatible third-party software that is running on your machine. It is also known as a kernel panic error. This error can be caused by damaged system files, outdated software, or a virus infection. If you have recently installed new software, it may be the cause of the error. Other possible causes include corrupt system settings, a hard drive problem, or a RAM issue.

Other errors that occur due to similar reasons include Error 79, Error Code -41 and Error Code -50.

Victims have reported the following messages related to Error Code 102:

An error has occurred. An error occurred while downloading the updates (102).

An error has occurred. The operation couldn’t be completed. (NSURLErrorDomain error -1102.)(102)

Could not connect to the server. Error-code-102

Furthermore, the following symptoms may occur after seeing this error:

  • Damaged or corrupted files on the external drive;
  • A pending update of the operating system;
  • A malware-related problem.

Is Mac Error Code 102 Dangerous?

No, Mac Error Code 102 is generally not considered dangerous. This error code usually indicates that some type of software issue is occurring, and it should be addressed as soon as possible. In most cases, the issue can be resolved by restarting the computer or running disk maintenance software.

How to Fix Mac Error 102?

First, try the following fixes to see if you will be able to get rid of Mac Error 102:

Fix 1. Update your Mac OS: One of the best solutions to fix error code 102 on Mac OS is to update your system to the latest version. To do this, go to the Apple menu and click on “Software Update”.

Fix 2. Restart your Mac: If updating your Mac OS does not help, try restarting your system. This can help to reset your system and solve many errors.

Fix 3. Reset the NVRAM: NVRAM (Non-Volatile Random Access Memory) stores certain settings and parameters for your Mac. Resetting the NVRAM can help to resolve any issues with your settings and parameters. To reset the NVRAM, hold down the Option, Command, P, and R keys and turn on your Mac.

Fix 4. Repair Disk Permissions: Disk permissions can become corrupted over time, which can cause error code 102. To repair disk permissions, open the Disk Utility app and select your Mac’s hard drive. Then click on “Verify Disk Permissions” and “Repair Disk Permissions”.

Fix 5. Delete Cache Files: Cache files can become corrupted over time, which can lead to error code 102. To delete cache files, open the Finder window, go to the Go menu, and select “Go to Folder”. Type in ~/Library/Caches and press Enter. Then select all of the files in the folder and delete them.

Option 1. Run the dot_clean command in Terminal

  1. Open the Terminal application.
  2. Type the dot_clean command and hit the Return key.
  3. Drag the problematic folder that you failed to copy into the Terminal box. Once loaded, hit the Return key again.
  4. Once you’ve completed these actions, you can attempt to perform the same action again and see whether the error appears.

Option 2. Allow full access to the problematic file/folder

This solution will help you, if the error is related to your account lacking privileges to change the problematic folder or file. You can fix that by logging in your administrator account and changing the file property to allow full access to the said file/folder.

  1. Right-click the folder or file that triggered the Error Code -36.
  2. Select Get Info.
  3. Uncheck the Locked option under the General Tab.
  4. Go to Sharing & Permissions, and make sure your account has read and write permissions to the said file or folder.

Option 3. Use Disk Utility’s First Aid

Since this error is related to a hard drive, using the First Aid in Disk Utility may do the trick of fixing it. To do that, follow these steps:

  1. Open Finder and select Applications, then Utilities.
  2. Double-click Disk Utility to start it.
  3. From its sidebar, choose the hard drive that caused the error to appear.
  4. Click First Aid and wait for the repair process to finish.

This should have resolved the Mac Error Code -36. However, if the problem persists, continue with the last two options.

Option 4: Install the latest updates of your OS.

Go to System Preferences – Software Update and check whether a newer macOS version is available for download. You will see a button to install it and Upgrade, if it is available.

Option 5: Scan your computer for errors and optimise it automatically.

If you have tried most of the fixes, but you keep getting error messages, consider checking your Mac for:

You can do all of this by running an automatic scan of your computer using a professional anti-malware program.



Spy Hunter scanner will only detect the problem. If you want the issue to be automatically removed, you need to purchase the full version of the anti-malware tool.Find Out More About SpyHunter Anti-Malware Tool / How to Uninstall SpyHunter

Mac Errors – Frequently Asked Questions

What are Mac Errors?

Mac errors are faulty problems of macOS. They are different types, affecting various programs running on your Mac.

Since macOS is frequently updated, it is easier to fix such errors, due to the way this operating system is constructed.

What Do Mac Error Codes Mean?

Error Codes on Mac are how your macOS explains the different types of problems that can occur on it. The number of the Mac Error code pops up on your screen, and it shows you the error with some explanatory text to help you fix it.

These error codes exist for both small and bigger problems, and in some cases, they can mean that there is a significant issue with your device.

Why Do I See Errors On My Mac?

The reasons may vary. These can be due to a badly written code, faulty software, external app modifying your app, incompatibility, problems with the resources required to run the app, and even a Mac malware infection.

What Types of Mac Errors Exist?

Just like with Windows devices, there are some general error types with Mac as well, including:

  • Runtime Errors – when you execute a program and it fails due to badly written code, incompatibility with the program and web servers or other problems, like malware.
  • Logic Errors – something in the logic makes the program fail to return results.
  • Arithmetic Errors – a type of logic error, which involves miscalculation due to an erroneous configuration or code that does not fit the same logic as the system reads it.
  • Resource Errors – when your device does not meet the resources required to run a program or if the program is coded faulty, so it requires more resources than necessary.
  • Interface Errors – when there is a difference between what an app is meant to do and what it actually does.
  • Compilation Errors – when the compiler of a software fails to turn complicated code into a simple language, understandable by your Mac.

Which are The Most Common Mac Errors?

According to different sources and online forums, the most commonly encountered errors on Mac carry the following codes:

  • Error Code 36 – when Finder fails to read or write a file on your Mac.
  • Error Code 41 – caused by malware, outdated software or corrupted files and directories.
  • Error Code 50 – when you fail to copy and paste a file onto another drive, like USB or an external SSD or HDD.
  • Error Code 2003F – it shows up when you try reinstalling your macOS in Recovery Mode. Possible causes include bad sectors in the hard disk, malware, etc.

What to Do If I See a Mac Error?

If you see an error on your Mac, your first job is to check the meaning of it. Then, you can see reputable forums, like Apple Discussions or SensorsTechForum in order to find different types of fixes for the problem.

How to Stop Getting Mac Errors?

You cannot. As long as there are people writing the code, there will always be the human error factor. However, there are several measures that you can take in order to significantly reduce the chance of getting a Mac Error:

  1. Check and update your Mac and your Apps (if possible) to the latest version on a daily basis.
  2. Install a relevant and reputable anti-malware for Mac.
  3. Install an optimizer for your Mac, which will keep all your apps updated, remove junk software, and improve your Mac’s health.
  4. Only install apps from trusted sources.

Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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