Firebase, Swift : Conflicting nullability specifier on return types, 'nullable' conflicts with existing specifier 'nonnull' Firebase, Swift : Conflicting nullability specifier on return types, 'nullable' conflicts with existing specifier 'nonnull' firebase firebase

Firebase, Swift : Conflicting nullability specifier on return types, 'nullable' conflicts with existing specifier 'nonnull'


ios swift firebase swift3 xcode8

ios swift firebase swift3 xcode8

ios swift firebase swift3 xcode8

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