not open main pannel

[rohan7030]

when I use MITM attack on practice VM system then I open kali Linux > sniffing and snooping > Ettercap graphical , so here I click
Ettercap OPEN but I click on "tik mark " for setup attack then automatic close I do 5 to 6 time to open this panel but this pannel not open after long time we try then this panel open and perform MITM attack

[koeppea]

What happens when you open it from a terminal?

sudo ettercap -G