Error:(vsim-19) Failed to access library max3000a_ver at max3000a_ver - Error:(vsim-19) Failed to access library max3000a_ver at max3000a_ver Description Due to a problem in the Quartus® II University Program software version 13.0, if you launch the ModelSim-Altera Edition simulator launched from the Waveform Editor, you may see the above error when simulating designs targeting MAX® 3000A devices. Resolution To work around this problem, perform the following steps Make the file <Quartus II installation directory> \modelsim_ase\modelsim.ini writeable. For example on Windows, right-click the file, select properties from the context menu and turn off the read-only option Add the following line to modelsim.ini : max3000a_ver = /../altera/verilog/max Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 13.0 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']