The WIDEshell User Interface requires the following programs:

• yad 10+
• penguins-eggs 9.6.14+
• gnome-terminal

gnome-terminal

gnome-terminal provides a --window (new window) otption that opens:

• bash commands
• bash scripts 
• terminal launches child terminal that runs a bash command or bash script.

These options are not available in other terminals.

Installing gnome-terminal:

sudo apt-get install gnome-terminal

DONE !