ID:186105 Project requires <number> GXB transmitter channels, but the target device can contain only <number> GXB transmitter channels because <number> quads are disabled by an I/O coupling problem

CAUSE: You selected a target device for the current project. However, the Fitter cannot place the project in the target device because the project requires more quads are disabled. These quads are disabled because they have an I/O coupling problem due to user I/O pin assignments.

ACTION: Modify the design to reduce the number of GXB transmitter channels in the project or select a larger device.