ID:14760 Bitstream for Custom Trigger HDL module: "<name>" contains illegal characters. Remove the illegal characters or restore your Signal Tap File to its original state. The bitstream can contain only the characters: 0 and 1

CAUSE: The bitstream string of the specified Custom Trigger HDL module contains illegal characters. As a result, the Quartus Prime software cannot save or compile the Signal Tap File (.stp).

ACTION: Remove the illegal characters from within the Advanced Trigger Editor--the bitstream can contain only the characters 0 and 1. If you manually edited the .stp File, restore the .stp File to its original state or create a new .stp File. If you used an EDA tool to generate the STP File, contact the EDA tool vendor for technical support regarding this message.