ID:15182 Output port <name>[<number>] of XGMII state machine atom "<name>" must connect to input port <name> of atom "<name>" in channel <number> -- if the configuration was instantiated with the MegaWizard Plug-In Manager, this error can occur when no outputs of the atom "<name>" are connected in the design

CAUSE: The specified output port of the specified XGMII state machine atom is not connected, connected to an illegal input port, or connected to an illegal atom. The output port of an XGMII state machine atom must connect to the specified input port of the specified atom in the specified channel. This error may occur when the current configuration is created with the MegaWizard Plug-In Manager (Tools menu) and no outputs of the specified atom type (GXB receiver channel or GXB transmitter channel) are connected in the design. During synthesis, the GXB receiver channel or GXB transmitter channel are removed from the design.

ACTION: Connect the output port of the XGMII state machine atom to the input port of the specified atom. If you used the MegaWizard Plug-In Manager to create the current configuration, make sure some of the outputs of the GXB receiver channel or GXB transmitter channel are connected in the design.