plist parsing errors

I have tried that. The plist error has now been replaced with "The server gave an error during download. 503 service unavailable" error. I have also been getting error on the App Stores on my iPod Touch and iPad. I believe apple authentication servers are down, since I can browse the whole store and look at things, but just can't verify my password to download or update items.

This pretty much confirms it.

https://www.apple.com/support/systemstatus/

However, it says only some users are affected, so if you are getting the plist error you can try deleting your app store plist files and see if that can help you.

To do so

Quit App Store

Go to

Finder -> Go

Hold down Option key and Library tab in the menu should pop up.

Go to the Library menu item folder and delete the files

com.apple.storeagent.plist

com.apple.appstore.plist

Afterwards, restart your Mac.

If this does not fit your issue, then the problem is on Apple's side and not ours.

downloaded Yosemite no prob--, but still get both plist and server down errors. tried the above and those two items are not to be found any where. App updates no available on the iPhone either.

Been getting the same two error messages since yesterday. And Apple is aware of it, but haven't done anything.

Dear MacDegsey:

I had this happen too, yesterday, with same OSX El Capitan 10.11 on my older iMac (vintage 2009) so I contacted support who had me do various troubleshooting, including resetting NVRAM etc. Eventually they told me to reinstall OSX in place, which I did. That fixed it yesterday and it is still updating properly. I asked if this was a 'store' problem or only occurring at my end. and I was told reinstallation generally fixes this kind of error: that something may have gotten garbled in download so this worked.

Today, the identical error message appeared on my 2013 iMac OSX El Capitan 10.11 'plist parsing error' so instead of doing all these fixes, I first checked this forum (lots of others have the error) and then I went to both Apple reporting systems

https://www.apple.com/uk/support/systemstatus/

https://www.apple.com/support/systemstatus/

which both report App Store is down for some users currently.

So I waited half an hour, and went to update my old computer - it worked fine.

On my newer computer, Then I tried updating Tweetbot and it updated! I can see a new time stamp on Tweetbot.app *** of 8:37 a.m.

So this computer seems to be updating and I was successful, without doing any reinstall of El Capitan.

I'll try this out on my old 2010 laptop, but have to go to work now.... 🙂

Try waiting, and if it still doesn't work in a few hours, open a support request with Apple. I hope you don't have to reinstall El Capitan.

It was painless to reinstall, took a couple hours, but that fixed yesterday. YMMV

Regards! Thanks to Apple Support for their help.