Error faild to execute.. when open terminal or any thing in kali under VNC android

i install nethunter in nexus 5 and work great under kali launcher menu , but the problem when i start kali under VNC android .. it start and see kali desktop and icons as a normal but when i try to open any thing like airodump or reaver or any tools or open terminal ... i got error pop up :KALI ERROR FAILD TO EXECUTE CHILD (GETPT FAILED : NO SUCH FILE OR DIRECTORY ) ....... any idea for this issue and how to fix that ????????