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# WARNING: DO NOT INCLUDE YOUR API KEY, API PROJECT ID OR CLIENT ID

Issue report
----------------

Hi guys, we receiving this crash for almost 4 months now, and I believe it's time to report.

Operating system version: iOS 11.4.1
Google Maps SDK for iOS version: 2.7.0
Hardware model: iPhone 8 Plus
There are no exact steps to reproduce the issue.

I can see that crash appeared on SDK 2.6.0
Don't think it's device related as there are crashes for iPhone 8, iPhone X and are several on  iOS 11.3.0
More details are available here: http://crashes.to/s/0f8010c1f5a

Fatal Exception: NSInvalidArgumentException
0  CoreFoundation                 0x1815dad8c __exceptionPreprocess
1  libobjc.A.dylib                0x1807945ec objc_exception_throw
2  CoreFoundation                 0x1815e8098 __methodDescriptionForSelector
3  CoreFoundation                 0x1815e05c8 ___forwarding___
4  CoreFoundation                 0x1814c641c _CF_forwarding_prep_0
5  CoreData                       0x183eb4bcc -[NSSQLForeignKey initWithEntity:toOneRelationship:]
6  CoreData                       0x183eb48bc -[NSSQLToOne initWithEntity:propertyDescription:virtualForToMany:]
7  CoreData                       0x183eb2da0 -[NSSQLEntity _generateProperties]
8  CoreData                       0x183eaf938 -[NSSQLModel _generateModel:error:]
9  CoreData                       0x18401d89c -[NSSQLModel initWithManagedObjectModel:configurationName:retainHashHack:brokenHashVersion:entityIDOffset:]
10 CoreData                       0x183eadbc0 -[NSSQLCore initWithPersistentStoreCoordinator:configurationName:URL:options:]
11 CoreData                       0x183fb9f30 __91-[NSPersistentStoreCoordinator addPersistentStoreWithType:configuration:URL:options:error:]_block_invoke
12 CoreData                       0x183fc7fb0 gutsOfBlockToNSPersistentStoreCoordinatorPerform
13 libdispatch.dylib              0x180ecca60 _dispatch_client_callout
14 libdispatch.dylib              0x180f09ed4 _dispatch_queue_barrier_sync_invoke_and_complete
15 CoreData                       0x183fb63dc _perform
16 CoreData                       0x183eabe20 -[NSPersistentStoreCoordinator addPersistentStoreWithType:configuration:URL:options:error:]
17 JunoMaps                       0x1008bae24 -[GMSCacheStorage initWithCacheStorageDescriptor:didReset:]
18 JunoMaps                       0x1008ba6a8 -[GMSCacheStorageDescriptor cacheStorage]
19 JunoMaps                       0x1008bb9d0 __49-[GMSObjectDataCache startWithCompletionHandler:]_block_invoke
20 CoreData                       0x183f7d554 developerSubmittedBlockToNSManagedObjectContextPerform
21 libdispatch.dylib              0x180ecca60 _dispatch_client_callout
22 libdispatch.dylib              0x180f0b1d4 _dispatch_queue_serial_drain$VARIANT$armv81
23 libdispatch.dylib              0x180f0baf8 _dispatch_queue_invoke$VARIANT$armv81
24 libdispatch.dylib              0x180f0c49c _dispatch_root_queue_drain_deferred_wlh$VARIANT$armv81
25 libdispatch.dylib              0x180f1446c _dispatch_workloop_worker_thread$VARIANT$armv81
26 libsystem_pthread.dylib        0x1811ffe70 _pthread_wqthread
27 libsystem_pthread.dylib        0x1811ffb08 start_wqthread