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1. #DROPBOX FOR MAC SIERRA MAC OS X#
2. #DROPBOX FOR MAC SIERRA MAC OSX#
3. #DROPBOX FOR MAC SIERRA MAC OS#
4. #DROPBOX FOR MAC SIERRA UPDATE#

System Preferences: System: Date&Time: untick Set…automatically: change date to before Nov2015: click Save. I have got the disabled apps to run as follows:

#DROPBOX FOR MAC SIERRA UPDATE#

Apple expects me to update my OS, but I can’t do that without losing the use of other old software which needs Rosetta to run, and I don’t want to risk all the other problems which may come with a new OS! Apple won’t refund the purchase price of the apps they disabled. I have sought help from Apple, but they just don’t answer specific questions, and they refuse to admit that Apple disabled the apps on my Mac! They even had the cheek to suggest that I seek old versions of apps from the developers! They don’t understand that I don’t want to instal a copy of an app with the same expired certificate.

#DROPBOX FOR MAC SIERRA MAC OSX#

some older apps have been replaced by updated versions which are not compatible with my Mac OSX 10.6. Note that you may sometimes see a similar but different error message stating the particular Mac “app is damaged and can’t be opened, you should move it to the Trash” which has a different potential set of solutions. But, should you see them, at least know it’s a simple fix, the apps aren’t actually damaged, it was just an error on the Apple side of things with a quick remedy. Obviously if you haven’t seen these error messages on your Mac, you have nothing to worry about, and can go about your merry way. Those interested in learning a bit more about the technical details behind these error messages can refer to this Twitter thread, which reveals the certificate that expired and speculates on various contributing factors. There are typically two “storeaccountd” processes running, one as user, and one as root, and thus using killall on both is sufficient to resolve the issue. You can target the storeaccountd processes via Activity Monitor if you want, or use the command line if you are comfortable with the Terminal: The Quick App Error Fix for Advanced Mac Users: Killing a Process That should be all that is required to get your apps working again in OS X.

#DROPBOX FOR MAC SIERRA MAC OS#

Resolving the “Sign in to use this application on this computer” Error in Mac OS XĪnother variation of this error message may appear in older versions of Mac OS X: Fortunately, deleting the app, rebooting, and re-downloading it again usually resolves the issue quickly. This “App is damaged and can’t be opened” error message occasionally happens even in modern macOS releases like macOS Big Sur.

Method 2: Fixing “App is damaged and can’t be opened” Error on Mac App Launch

Open the once impacted apps again, they should now work fine.If a reboot does not fix the app, delete the application (just drag it to the Trash and empty), then re-launch the Mac App Store and download the app again via the Purchases tab or by searching for the app manually.

#DROPBOX FOR MAC SIERRA MAC OS X#

Resolving the “App is damaged and can’t be opened” Error in Mac OS X Yes, this is a strange and frustrating error message, but it’s easily resolvable. Sometimes it can also be the result of a fluke issue when downloading an app from the App Store. The reason these app can’t be opened error messages are appearing may be because of a code signing security certificate expired, in which case this is not user error or anything to do with user involvement, it’s basically something with DRM that was messed up on the Mac App Store side but is now impacting some applications that were downloaded from there.