:observer.start is not working on Ubuntu

Just sharing what worked for me in case someone else is facing the same issue in the same setup:

  • OS: Ubuntu 20.04 LTS
  • Elixir: 1.12.0
  • Erlang/OTP 24 [erts-12.0.2]

Solution:

sudo apt install libwxgtk-webview3.0-gtk3-0v5
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