The following messages may appear in the Quartus® II software version 4.0 SP1 when you are not using the correct version of a license daemon.
Warning: FLEXlm software error: Future license file format or misspelling in the license file. The file was issued for a later version of FLEXlm than this program understands. Feature: <feature> License path <license path>
Error: Can't open encypted VHDL or Verilog HDL file "file directory" -- current license file does not contain a valid license for encrypted file.
To fix this problem, ensure that you are using the lmgrd and alterad license daemons version 8.4 or later.