iOS Photos App Exclamation Mark – What Does the Exclamation Mark in Photos for iOS Mean?

Since Photos is so new, it may be tricky to find solutions to issues. However, applying iPhoto type fixes may help.

Before beginning and repair, make sure you have a backup of your entire Photos/iPhoto library.

1. You can try closing Photos, then open Photos while pressing Command and Option. This brings up a window for repairing issues. Select the Repair option to start rebuilding the library. These instructions can also be found HERE on Apple's website.

2. Unfortunately, the wonderful app, iPhoto Library Manager doesn't support Photos.app, but they are creating a new app that does, call PowerPhotos! Hopefully it'll be released soon. Until then, we must rely on Apples built in repair functions.

Looks like this is coming in El Capitan; it was announced at WWDC.

Reported on multiple news sites, but an example snippet from here: "...support for third-party editing extensions that will be available from the Mac App Store and accessible within Photos itself. It doesn’t sound as though that will enable external editing in Adobe Photoshop, say, but it will go a long way toward enhancing the editing capabilities of Photos."