Hi, I installed Quartus Prime 18.0 Lite Edition on UBUNTU 16.04 LTS , and it is OK. But , when I start RTL simulation tool It can not lunch MODELSIM

Hi,

1. To Launch Modelsim from within the Quartus II software set

The QUARTUS_INIT_PATH variable specifies the path(s) of the EDA tool(s) to be launched from within the Quartus II software. You must set this variable to launch other EDA tools from within the Quartus II software.

refer for more information

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/manual/qts-archive/_2-5-1-quartus-install-unix.pdf

or

2. Set export PATH=$PATH:~/intelFPGA_lite/18.0/modelsim_ase/linuxaloem/

Go to the directory and execute

./vsim