App Store Update stuck

Solution 1:

I had something like with with another update a few weeks ago. It is probably caused by their database records being slightly out-of-sync.

I ignored it for a couple days, and it went away.

Solution 2:

I had that issue with the 2.0.1 update as well. What finally worked for me (see this Apple Support Discussion) was downloading Pacifist and using it to install the update that I downloaded manually from the Apple Support site here. All you have to do is choose "Open Package" in Pacifist, select the Pro Video update disk image, and install the top-level item ("Contents of [dmg name].dmg").

This method seems to have worked for me. However, something about the installer seems to mess with file permissions, because Disk Utility had a lot to sort out after installing. This seems to have more to do with the Apple Installer itself, though, and not the method by which it is installed.

Solution 3:

From Apple Support Communities

Just called Apple support... here is the official fix.

1. Move all files from /Library/QuickTime/ to a temp older on desktop
2. Open AppStore and download/install update
3. Reboot
4. Copy any missing files from temp folder on desktop to /Library/QuickTime. For me this was 1 file, AppleMPEG2Codec.component.