I've experienced this when installing or updating a number of applications, most recently Logic Pro X. What's the reasoning behind this?
Memory Clean update & Pocket new purchase both stuck in installing bar, though in MAS purchase page appears " installed". Both appear in launchpad as if in progress but with full bar.
since 10.8 was installed on my mac, when i try to update itunes, or airport utility, it always gets stuck on "installing - less than a minute". then i have to shut the computer from the power button ...
I have some applications purchased through the Mac App Store, and I have two Macs. Presently, if I buy an application on my Mac mini, I just go and launch the App Store on my MacBook Air, and then ...
I've tried upgrading iTunes, un-installing and reinstalling. Removing all Apple software from my machine. Running the installer with administrative rights. Installing Quicktime independently of ...
I had a few apps originally purchased through the App Store that got corrupted. I removed them with the intent of re-installing them from the App Store, but it seems that the App Store thinks they're ...