Problem
You are trying to set up kubernetes on your local machine but trying to use initialize it with kubeadmin init, returns the following error:
[init] Using Kubernetes version: v1.18.3
[preflight] Running pre-flight checks
error execution phase preflight: [preflight] Some fatal errors occurred:
[ERROR Swap]: running with swap on is not supported. Please disable swap
[preflight] If you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=...`
To see the stack trace of this error execute with --v=5 or higher
Solution
Switch the swap to off (Ubuntu command below) and try again.
sudo swapoff -a