Canceling since a higher priority waiting request for 'client_app-cheryllin/firestoreSwiftCpp' exists

The operation was canceled.

implicit conversion loses integer precision: 'typename std::enable_if<!std::is_same<void, decltype(block())>::value, decltype(block())>::type' (aka 'unsigned long') to 'int' [-Wshorten-64-to-32]