ID:18630 This congestion may be avoided by moving or disabling promotion of any of the following competing signals:

CAUSE: This message is generated when the Fitter encounters congestion in a section clock (SCLK) network while trying to connect the clock driver to its fan-outs.

ACTION: Make a Clock Region assignment to constrain the fan-out of one of the affected signals such that it is not required in this Spine Clock region. Alternatively, if a signal does not require usage of the global clock network, disable it with a Global Signal Off assignment. The Fitter may also be able to find a solution by removing any existing location assignments made to the clock sources or buffers driving these signals.