is
Return
true if error prevents tracking service start and false otherwise. E.g. if SDK was initialized with invalid publishable Key tracking won't start and this method will return true, but if location was disabled on OS wide level (from settings) than tracking service will start and, if location will be enabled in future, it will start tracking without additional restart. So false will be returned in that case. It is recommended to use this method for using feature flags, since the same error could be moved from critical to non-critical group as SDK evolves.