can't start minikube in ec2 shows "X Sorry, Kubernetes v1.18.0 requires conntrack to be installed in root's path"

Hi I am trying to start minikube that's why I ran

minikube start --vm-driver=none

But it shows in the console the below lines:

minikube v1.9.2 on Amazon 2 (Xen/amd64) Using the none driver based on user configuration X Sorry, Kubernetes v1.18.0 requires conntrack to be installed in root's path

Note that i have installed kubectl minikube and docker.

Please help me to sort out this issues.