macOS
Browse all macOS error codes below.
Error Codes
Error 1004
Apple
macOS
App Store error 1004 means the Mac could not connect to Apple's App Store …
Error 69877
Apple
macOS
Error 69877 in Disk Utility means the APFS (Apple File System) operation …
App Is Damaged and Can't Be Opened
Apple
macOS
Your Mac's security system (Gatekeeper) is blocking the app.<br>It doesn't trust …
System Has Run Out of Application Memory
Apple
macOS
Your Mac ran out of RAM — the fast memory apps use while running.<br>When RAM …
Disk Almost Full
Apple
macOS
When macOS shows a 'Your disk is almost full' warning, your Mac's internal …
App Store Error 100
Apple
macOS
App Store Error 100 means your Mac could not connect to Apple's servers to load …
App Store Error 113
Apple
macOS
Mac App Store error 113 means the App Store application cannot connect to …
App Store Error 400
Apple
macOS
App Store Error 400 on Mac means the App Store received a bad request — usually …
App Store Error 500
Apple
macOS
App Store error 500 on macOS means the App Store received an unexpected response …
App Cannot Be Opened
Apple
macOS
When a Mac app refuses to open, you might see messages like 'The application …
Error 4SNS
Apple
macOS
Apple Diagnostics Error 4SNS means one or more temperature or voltage sensors …
Apple ID Locked
Apple
macOS
A locked or disabled Apple ID means Apple has temporarily frozen your account …
Bluetooth Not Available
Apple
macOS
The 'Bluetooth Not Available' error on Mac means macOS cannot communicate with …
Disk Not Ejecting
Apple
macOS
When you try to eject a drive and macOS says it cannot because the disk is in …
Disk Utility First Aid Error
Apple
macOS
When Disk Utility's First Aid tool finds errors it cannot repair, it means your …
Error 100008
Apple
macOS
macOS error 100008 appears when Time Machine cannot complete a backup.<br>The …
Error 2003F
Apple
macOS
Apple Diagnostics Error 2003F means the built-in hardware test found a problem …
Finder Not Responding
Apple
macOS
When Finder is not responding on your Mac, the desktop, folder windows, and file …
Gatekeeper Error
Apple
macOS
macOS Gatekeeper blocks apps that are not from the Mac App Store or from …
iCloud Error 54
Apple
macOS
iCloud Error 54 'Operation Not Permitted' means iCloud tried to sync a file but …
macOS Installation Failed
Apple
macOS
The 'macOS Installation Failed' error means the macOS installer could not …
Kernel Panic
Apple
macOS
A kernel panic is macOS crashing at its deepest level — the core of the …
Permission Denied
Apple
macOS
A 'Permission Denied' error on Mac means your user account does not have the …
Safari Cannot Open the Page
Apple
macOS
Safari's 'Cannot Open the Page' error means Safari could not load the website …
Spinning Beach Ball
Apple
macOS
The spinning rainbow beach ball (officially called the Spinning Wait Cursor) …
Startup Disk Almost Full
Apple
macOS
The 'Your disk is almost full' warning means your Mac's main drive is running …
SIP Disabled
Apple
macOS
System Integrity Protection (SIP) is a macOS security feature that prevents …
Time Machine Backup Failed
Apple
macOS
Time Machine Backup Failed means macOS was unable to complete a backup to your …
Time Machine Error 11
Apple
macOS
Time Machine Error 11 means the backup could not be completed because of a …
Time Machine Error 256
Apple
macOS
Time Machine Error 256 means the backup could not be completed due to an …
Time Machine Error 45
Apple
macOS
Time Machine Error 45 means the backup drive cannot be accessed or is not …
macOS Update Error -1
Apple
macOS
macOS Update Error -1 is a generic failure code that appears when the Software …
macOS Update Error 403
Apple
macOS
macOS Update Error 403 means your Mac was denied access to Apple's update …