Step 0: 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 please use the Feature Request template.
• For general technical questions, post a question on StackOverflow
  with the firebase tag.
• For general (non-iOS) Firebase discussion, use the firebase-talk
  google group.
• For backend issues, console issues, and other non-SDK help that does not fall under one
  of the above categories, reach out to
  Firebase Support.
• Once you've read this section and determined that your issue is appropriate for
  this repository, please delete this section.

[REQUIRED] Step 1: Describe your environment

• Xcode version: 12.5.1
• Firebase SDK version: 8.5.0 (but I scanned commits through 8.6.0, doesn't look addressed)
• Installation method: CocoaPods (select one)
• Firebase Component: App Check

[REQUIRED] Step 2: Describe the problem

Steps to reproduce:

Send YES for "forceRefresh" argument in this method

(DLog is just a wrapper for standard logging, use what you need)

Relevant Code:

- getToken : (FIRApp *)firebaseApp : (BOOL)forceRefresh) { FIRAppCheck *appCheck = [FIRAppCheck appCheckWithApp:firebaseApp]; [appCheck tokenForcingRefresh:NOcompletion:^(FIRAppCheckToken *_Nullable token, NSError *_Nullable error) { if (error != nil) { // Handle any errors if the token was not retrieved.DLog(@"Unable to retrieve App Check token: %@", error); return; } if (token == nil) { DLog(@"Unable to retrieve App Check token."); return; } DLog(@"fetched token successfully"); }]; }

App crashed: Exception was thrown: NSInvalidArgumentException *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[0] ( 0 CoreFoundation 0x00007fff20422faa __exceptionPreprocess + 226 1 libobjc.A.dylib 0x00007fff20193ff5 objc_exception_throw + 48 2 CoreFoundation 0x00007fff204a1523 _CFThrowFormattedException + 194 3 CoreFoundation 0x00007fff204ac91d -[__NSPlaceholderDictionary initWithCapacity:].cold.1 + 0 4 CoreFoundation 0x00007fff2048f4c6 -[__NSPlaceholderDictionary initWithObjects:forKeys:count:] + 251 5 CoreFoundation 0x00007fff20421c42 +[NSDictionary dictionaryWithObjects:forKeys:count:] + 49 6 testing 0x000000010ff2525a -[FPersistentConnection sendAppCheckToken:] + 154 7 testing 0x000000010ff251a1 -[FPersistentConnection refreshApp<…> 

No crash if you send NO in there