The specified Packet Identifier is already in use for an outstanding QoS 1 or QoS 2 message. Sent in a PUBACK or SUBACK packet to indicate a protocol flow conflict.
Numeric value: 145
PacketIdentifierInUse
mqtt The specified Packet Identifier is already in use for an outstanding QoS 1 or QoS 2 message. Sent in a PUBACK or SUBACK packet to indicate a protocol flow conflict.
Numeric value: 145