ID:146064 Pattern Section of vector source file <name> contains incorrect relative pattern for output signal. Pattern must be started with an equal sign "="

CAUSE: You attempted to open the specified vector source file or to simulate a design using the vector source file as the source of vector stimuli. However, the pattern section in the specified vector source file does not start with an equal sign for output signals.

ACTION: If you edited the vector source file outside of the Quartus Prime software, open the specified file as text. Then, edit the incorrect pattern in the Text Editor, save the file, and either re-open the file or re-simulate the design.