'std::array<char,18>': base class undefined

'string_view': is not a member of 'std'

'string_view': undeclared identifier

'std::hash': 'string_view' is not a valid template type argument for parameter '_Kty'

'std::hash': use of class template requires template argument list

'string_view': is not a member of 'std'

'data': is not a member of 'toolkit::UdpServer::PeerIdType'

'size': is not a member of 'toolkit::UdpServer::PeerIdType'

'string_view': identifier not found

binary '[': 'toolkit::UdpServer::PeerIdType' does not define this operator or a conversion to a type acceptable to the predefined operator

'argument': conversion from 'size_t' to 'int', possible loss of data

'argument': conversion from 'size_t' to 'int', possible loss of data

'argument': conversion from 'size_t' to 'int', possible loss of data

'argument': conversion from 'size_t' to 'int', possible loss of data

'argument': conversion from 'size_t' to 'int', possible loss of data

'argument': conversion from 'size_t' to 'int', possible loss of data