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Some Mac users may occasionally encounter a somewhat foreign error when they endeavor to open an app that was downloaded to their Mac, upon launching the app a footling "verifying" progress bar will appear and stall for a moment before an error alert message says "Appname.app is damaged and can't be opened. You should move it to the Trash." with an accompanying detail specifying when and where the file was downloaded from. You then accept 2 options, to 'abolish' or to "Movement to Trash" the app you downloaded.
This article will offering a few means to remedy this error message on the Mac.
How to Fix App Damaged and Can't Be Opened Errors on Mac
There are a few different tips and tricks that can remedy these 'app damaged' error messages on the Mac. Re-downloading the app, rebooting the Mac, installing arrangement software updates, and using the command line are covered here. Note if yous are seeing a similar but different error message with Mac App Store apps, utilize this troubleshooting guide instead.
1: Re-download the App
The outset matter you should do to try and remedy the "app damaged" mistake message is to re-download the app to the Mac, and make certain information technology comes from a trusted source.
For example if you are downloading Google Chrome or Signal, make sure you lot download those apps straight from the programmer website only, practise not download them from third party sites.
Often just re-downloading the app, trashing the 'damaged' version, then relaunching the freshly downloaded copy will resolve this error message.
Sometimes the re-downloading arroyo doesn't work, and sometimes downloading an app directly from a developer or a trusted source is not an option, and sometimes yous have to download certain apps from third political party sites (specially with antiquated apps that accept go abandonware). In these situations, you lot can endeavor the adjacent approach to get around the the "app is damaged and can't be opened" fault message.
As mentioned earlier, if yous are seeing a similar error with a Mac App Store app saying "Name.app is damaged and can't be opened. Delete Proper name.app and download it again from the App Store." then click here for dissimilar instructions at resolving. Unremarkably you simply have to log back into the Mac App Shop and re-download the app in that situation.
ii: Reboot
This is decidedly simpleton, but often simply rebooting the Mac will resolve the "app is damaged and tin can't be opened" error message on the Mac, particularly if you have already re-downloaded the app from a trusted source (the Mac App Shop, directly from the developer, etc).
You tin can restart any Mac by going to the Apple menu and choosing "Restart".
Afterward the Mac boots back upward again, effort and re-open the app over again.
3: Install Available Arrangement Software Updates
It appears that sometimes this error message shows up because of specific system software versions and/or Gatekeeper. Installing available system software updates on the Mac tin can often resolve this if so. Exist certain to backup the Mac before doing so.
For MacOS 10.14 or later (Mojave and newer): Get to the "Software Update" preference console in Arrangement Preferences to discover available macOS organization software updates.
For MacOS 10.13 and before: Become to the Mac App Stores "Updates" tab to detect available system software updates.
For pre-App Shop Macs (10.6 and earlier): Utilize the "Software Update" preference panel in System Preferences every bit well.
If at that place are bachelor organisation software updates, or security updates, install those to the Mac.
Note this is not suggesting to update major OS releases, which is a much more circuitous chore, only to update available organisation software updates. For example if your Mac is running El Capitan x.xi.x than install any El Capitan related updates that are available.
four: Use xattr on the App Throwing the Damaged Error
This is sort of a terminal resort and is only recommended for advanced Mac users. Mostly speaking if the app is still throwing a 'damaged' error message you might desire to not use it. Use this at your own chance.
With the command line y'all can apply xattr to view and remove extended attributes from a file on the Mac including the awarding throwing the "Appname.app is damaged and can't be opened. You should motility it to the Trash." fault message.
Launch Terminal then issue the following command:
xattr -cr /path/to/awarding.app
For example:
xattr -cr /Applications/Indicate.app
The -c flag removes all attributes, whereas -r applies recursively for the entire targeted .app directory contents.
The xattr command can besides be used to remove the 'application downloaded from the internet' error bulletin on the Mac too. Again this is only recommended to advanced users because modifying extended attributes may accept unintended consequences, and again yous might be attempting to run an app that y'all should non exist running, either for stability, privacy, security, or other reasons.
Did the tricks in a higher place work to resolve the "Appname.app is damaged and can't exist opened. You lot should move information technology to the Trash." error on the Mac for yous? Do yous know of another workaround or solution to resolving this fault message? Share with united states in the comments!
Source: https://osxdaily.com/2019/02/13/fix-app-damaged-cant-be-opened-trash-error-mac/