Hi, I'm Ashik. Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP
There are two reasons for this problem. Either the iPhoto application is corrupted or it is the iPhoto Library that has corrupted. We can rebuild your iPhoto Library and see if that works or not.
Close iPhoto if it is open. Hold down the Command and Option keys on the keyboard and open iPhoto. Keep the keys held down until you are prompted to rebuild the library. A dialog will appear with rebuild options. Select all the options/checkboxes Click Rebuild. This may take a few minutes to complete.
After rebuilding, iPhoto will open.
If it is still quitting after rebuilding, then we have to rebuild the iPhoto library using a third party application named iPhoto Library Manager. Download and install it from here (use the trial version) : http://www.fatcatsoftware.com/iplm/
Open iPhoto Library Manager. Select your iPhoto Library, click on Library menu in the top and select Rebuild Library. This will verify the library. Then click the Rebuild button on the right.
After rebuilding, open iPhoto.
Please let me know if that didn't work, so we can continue troubleshooting.
Choose each one and rebuild
You will have to repeat the rebuild steps until you rebuild with all options.
How is it going ?
Yes, it will take time especially if your library is large.
It is the library that is corrupted. We need to rebuild using iPhoto Library Manager,
Download and install it from here (use the trial version) : http://www.fatcatsoftware.com/iplm/
Just checking. How is it going ?
No problem. Good luck
One important thing. Make sure there is enough space on your Mac to rebuild the library.
Can you restart your Mac and test again ?
Also hold down Option key on keyboard and open iphoto. Select Choose Library and choose the iPhoto Library Rebuilt one
Not sure what happened. Search jpg in spotlight and does it return your pics ?
Try this. In Finder, click on Go menu and select Home folder. Open Pictures folder. Right click or control + click on the non rebuilt library there and select Show Package Contents. Open Masters or Originals folder and check all folders and do you see those missing photos ?
Yes, we can continue any time you want. Add a bookmark of this page or add this page to your favorites, so you can get back to me via that bookmark when you are back.
When you are back, I want you to look in the Masters folder of rebuilt library. It is possible that file corruption caused the photos to disappear. We got the library back to working, but I'm not sure what happened to those pictures.
Also search jpg in Spotlight (searchbox/magnifier at top left). It will show all the pictures stored on your Mac. If it didn't return your pictures, I'm afraid they are gone. But we can do a thorough search when you are back.
If you have any questions or would like any additional information, please don't hesitate to ask.If you are satisfied with my service, please rate me as Good or Excellent Service (4 or 5 stars) and click Submit at the top. Then only I will get credit for helping you. You can get back to me even if you rate my service. This question will not be closed. Make sure you post a reply in here and don't open new question when you are back.Best Regards,Ashik