I do not know if anyone encounters problem / error this, but sometimes I open application Photos on OS X Yosemite 10.10.4, the error below appears, and the only options are "Reopen"Or"Ok".
Photos quit unexpectedly
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Process: Photos [446]
Path: /Applications/Photos.app/Contents/MacOS/ Photos
Identifier: com.apple.Photos
Version: 1.0.1 (215.65.0)
Build Info: PhotoApp-215065000000000~1
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Photos [446]
User ID: 501
Date/Time: 2015-07-02 20:52:31.862 +0300
OS version: Mac OSX 10.10.4 (14E46)
Report Version: 11
Anonymous UUID: -
Awake Time Since Boot: 1800 seconds
Crashed Thread: 40 Dispatch queue: SBLCloudFeedEntriesManager-dispatchQueue
Exception Type: EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Application Specific Information:
Aborting due to uncaught exception: NSInvalidArgumentException
Exception message: *** - [__ NSPlaceholderArray initWithObjects: count:]: attempt to insert nil object from objects [1]
Exception backtrace is provided as application specific backtrace.
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The support page Apple I have not found too much data. If you encounter this issue and / or if you have found an answer, please leave comments. Thank you! :-)