Hi, Im trying to make testbench but i get this error (vsim-7) Failed to open readmem

** Warning: (vsim-7) Failed to open readmem file "D:/altera askhseis/tbtest999/stimulus.tv" in read mode. # No such file or directory. (errno = ENOENT) : D:/altera askhseis/tbtest999/tbtest.sv(23) ...