ID:176114 Can't merge fast PLL <name> and fast PLL <name> -- can't place merged PLL in current device

CAUSE: The Fitter cannot merge the specified fast PLLs because the Fitter cannot find a location in the current device to place the merged PLL. This message can occur if the device is too small, or if the two fast PLLs are incompatible.

ACTION: No action is required. To avoid receiving this message in the future, select a larger device, modify the design so that the two fast PLLs are compatible, or use the MegaWizard Plug-In Manager and turn off Use Common PLLs for Rx and Tx.