Since updating I keep receiving "URLs with the type "file:" are not supported" error message...

I was also getting this very annoying error message. I did try turning Time Machine off when not connected to my external drive, and so far, so good.

hi mcek, you might be just right. i have the same thought/suspecion. funny it doesn't happen on my macbook, though.

Turning off the Time Machine does help this annoying pop up, Thanks!

Baffling that Apple let a bug like this slip through. But yes, turning off Time Machine stops the annoying pop-up error message.

I can confirm that this seems to be a time machine issue. When traveling with my MacBook Air today I have gotten the error. I returned and plugged in my external drive and the problem has not recreated itself.

I had the same problem. We definitely traced it to Time Machine. The "Fix" was this: plugged in and designated different external HD as Backup volume. Then plugged in the original disc (after testing in in a different machine) and now the computer recognized it and error message stopped popping up. The Apple tech was as puzzled as I as to why this worked, but perhaps, forcing the machine to re-recognize it (or maybe even, gettting it recognized by a different machine first) somehow worked some magic. (Since posting this in another chat, several people have been successful. Good Luck!)

I found out what triggers this message, at least in my situation.

I only get this message when I mount the USB HD that is hooked up to my AirPort Extreme (either remotely or within my home network).

I do use a USB HD for Time Machine, and though I keep TM off, I don't get this message when the AirPort Extreme USB HD is not mounted.

I keep getting this message: There was a problem connecting to the server The URLS with the type "file:" are not supported

I tried Jonathans solution in the following topic.

https://discussions.apple.com/thread/3191753?answerId=15723176022#15723176022

This helped in my case.

Tengo el mismo problema. Mi mac tiene un procesador core 2 du.

Ayuda por favor

Hi, im having the same problem.... i dont use the time machine and still have this pop up error message... hope there is a solution soon.

as far as i can see, whether or not using the timemachine is not the issue. the issue is you have to designate an ext. hard drive to get rid of that error message.

Sorry, can't follow: designate an external hard dirve for what?

Curiously, I just updated three computers, and only one showed this issue...

that is: designate an external hard drive for your timemachine. hopefully it will then get rid of the error message while the ext.HD remains plugged in. according to many other users, including myself, this has proved effective.

frankly, someone posted it that even the techs at apple don't quite understand what really the culprit(s) for that problem is/are.

I think you're quite lucky to have only one computer affected by whatever the culprit is. But the issue at hand is how and what we can help solve the issue on that affected computer of yours.

Since I am, like you, only an everyday user, instead of any techie or wizzard, who has experienced the same troublesome matter... I suggest to try my (and many others' same/similar) reccommendation as above - also posted on the forum thru out the past coupe of weeks.

if you do not (and don't need to) have an ext. HD and do not need to use timemachine at all, then, you perhaps have to live with that error message until either Apple solved that issue in its Lion update or you pick up an ext. HD now for a quick solution.

P.S. -- i don't use timemachine but do have an ext. HD. so i have it designated for timemachine use. to avoid the error message i have to keep it plugged in at all times - on both of my iMac and Macbook Pro.

Thanks for the precision!

I do have Time Machine setup on all computers with different external hard drives.

This bug isn't a very constant one, for example, today it only showed up once. :-/

I'm guessing I'll live with it until Apple issues an update.

Best regards.