Fabric SDK Crash [ANSAnswersController logCrashEvent:]

Question

Fatal Exception: NSInvalidArgumentException *** +[NSJSONSerialization dataWithJSONObject:options:error:]: value parameter is nil

Foundation +[NSJSONSerialization dataWithJSONObject:options:error:] + 84

ProjectName -[ANSWriteEventOperation logLineWithTimestamp:eventName:payloadDictionary:] + 72

ProjectName -[ANSWriteEventOperation generateFormattedLogLineWithMetdata:timestamp:] + 142

ProjectName -[ANSWriteEventOperation initWithEvent:metadata:logFileUrl:] + 200

ProjectName __38-[ANSAnswersController logCrashEvent:]_block_invoke + 600

Foundation NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK + 8

Answer 1

This has been fixed in 3.8.2 as per the Crashlytics developers. See this speicific developer comment https://twittercommunity.com/t/crash-io-answers-eventqueue-nsoperation-qos-background/74765/7