Fatal Exception: NSInternalInconsistencyException Cannot fetch token invalid checkin state

[deanthibault]

[READ] Step 1: Are you in the right place?

• For issues or feature requests related to the code in this repository
  file a Github issue.
  • If this is a feature request make sure the issue title starts with "FR:".
• For general technical questions, post a question on StackOverflow
  with the firebase tag.
• For general Firebase discussion, use the firebase-talk
  google group.
• For help troubleshooting your application that does not fall under one
  of the above categories, reach out to the personalized
  Firebase support channel.

[REQUIRED] Step 2: Describe your environment

• Xcode version: 10.2
• Firebase SDK version: 6.0.0
• Firebase Component: Core
• Component version: 6.0.0

[REQUIRED] Step 3: Describe the problem

Getting crash when calling FirebaseApp.configure() in willFinishLaunchingWithOptions

Steps to reproduce:

What happened? How can we make the problem occur?
This is happening when running in iOS simulator.
It occurs after running the app, then deleting app from simulator and running again.
It is intermittently reproducible.

Fatal Exception: NSInternalInconsistencyException
Cannot fetch token invalid checkin state

Fatal Exception: NSInternalInconsistencyException
0 CoreFoundation 0x113e9f1a3 (Missing)
1 libobjc.A.dylib 0x112e0b735 objc_exception_throw
2 CoreFoundation 0x113e9ef42 (Missing)
3 Foundation 0x11158f940 -[NSAssertionHandler handleFailureInFunction:file:lineNumber:description:]
4 mpdx-ios 0x10f04dd03 -[FIRInstanceIDTokenOperation start] (FIRInstanceIDTokenOperation.m:136)
5 Foundation 0x1115fcc4b __NSOQSchedule_f
6 libdispatch.dylib 0x115a624e1 (Missing)
7 libdispatch.dylib 0x115a6354b (Missing)
8 libdispatch.dylib 0x115a65f70 (Missing)
9 libdispatch.dylib 0x115a655dd (Missing)
10 libdispatch.dylib 0x115a72491 (Missing)
11 libdispatch.dylib 0x115a72cfb (Missing)
12 libsystem_pthread.dylib 0x115e49169 (Missing)
13 libsystem_pthread.dylib 0x115e48be9 (Missing)

Relevant Code:

FirebaseApp.configure()

[paulb777]

The checkinfoAvailable assertion is failing - https://github.com/firebase/firebase-ios-sdk/blob/master/Firebase/InstanceID/FIRInstanceIDTokenOperation.m#L136

[charlotteliang]

@deanthibault Thanks for reporting the issue. Can you share with us the debug log?

[deanthibault]

Here's the console output
console_output.txt

[charlotteliang]

Can you enable debug mode? -FIRDebugEnabled

In Xcode, select Product > Scheme > Edit scheme...
Select Run from the left menu.
Select the Arguments tab.
In the Arguments Passed On Launch section, add -FIRDebugEnabled

[deanthibault]

debug_console_output.txt

[realvadim]

Same issue here. Occurs intermittently immediately after launch of a freshly installed app.
Firebase iOS 5.20.2
Xcode 10.1

[charlotteliang]

assertion should only be triggered in debug mode, we should not enable assertion in release build. looks like the release build doesn't include "-DNS_BLOCK_ASSERTIONS=1", we had it in g3 but I guess we need to include it in github version as well.

[paulb777]

@chliangGoogle There is no github release build. We release the source. In many cases, we want any developer, whether 1st party or 3rd party, to get the assertion. If that's not the case here, we should change the code.

[choiks14]

same here

[charlotteliang]

@deanthibault @choiks14 can you download our newest SDK and see if the issue has been mitigated for you?

[deanthibault]

This seems to be fixed. I haven't been able to reproduce this issue on v. 6.2.0.

[ryanwilson]

Thanks, closing now. If anyone else has this same issue with 6.2.0, please re-open the issue.