ID:13307 Verilog HDL File I/O error at <location>: can't open Verilog Design File "<name>"

CAUSE: In a Verilog Design File (.v) at the specified location, you attempted to read from the specified file. However, the Quartus Prime software could not find the file, or it could not open the file, perhaps because it was an encrypted design file for which you do not have a license. When a design file refers to another design file with a simple filename or a relative filename, the Quartus Prime software will first look for the file relative to the project root directory, then relative to the current design file's directory, and finally relative to the User Libraries you have specified.

ACTION: Make sure that all design files are in the correct locations, that any encrypted design files you reference are correctly licensed, and that you have spelled the names of all files and paths correctly. Make sure all file are specified with absolute paths or with relative paths that will be correctly resolved by the Quartus Prime search algorithm.