I can't open iPhoto

Locate the library in the Finder, drag it to a writable area on a volume formatted as Mac OS Extended, launch iPhoto with the Option key held down, and choose it.

(123000)

First, if you've moved the iPhoto library to an external drive, make sure that drive is mounted by opening it in the Finder.

The issue can be caused by sharing the photo library on a network (against Apple's advice) or by opening it in more than one local user account at the same time. You may be able to clear the error by logging out or restarting the computer. If not, do as follows.

Quit iPhoto if it's running, locally or on any file-sharing client. Select the iPhoto Library in the Finder. Usually it's in the Pictures folder, but you may have moved it somewhere else. Right-click or control-click the library icon and select

Show Package Contents

from the popup menu. In the folder that opens, navigate to

Database/apdb/lockfile.pid

and move that file, if it exists, to the Trash. Close the Finder window.

Credit for this observation to ASC member Elijahg.

Where is the iPhoto library? Usually it would be in the Pictures folder inside your home folder, but you may have moved it.

What backups do you have?

Using the finder select your hard drive an get info - that window tells you how much free disk space you have

You need a min of 10 GB or you will have problems and possibly damage your system

LN

things you do not need

The best solution is going to be to use an external drive formatted Mac OS extended (journaled) for your iphoto and your iTunes libraries

Moving the iPhoto library is safe and simple - quit iPhoto and drag the iPhoto library intact as a single entity to the external drive - depress the option key and launch iPhoto using the "select library" option to point to the new location on the external drive - fully test it and then trash the old library on the internal drive (test one more time prior to emptying the trash)

And be sure that the External drive is formatted Mac OS extended (journaled) (iPhoto does not work with drives with other formats) and that it is always available prior to launching iPhoto

And backup soon and often - having your iPhoto library on an external drive is not a backup and if you are using Time Machine you need to check and be sure that TM is backing up your external drive

LN

You haven't answered my question about backups. If that means you have no backups, then you need to back up now, before you do anything else at all.

Mac Basics: Time Machine backs up your Mac - Apple Support

these? do you mean an external hard drive? Store.apple.com or OtherWorld Computing - of any of a thousand retailers online or with storefronts including CostCo, Bestuy, Frys, etc, etc, etc

LN

Grand prospective

But your problem is that you have no disk available so you probably can not download anything - you are even having trouble using what you already have

LN