How to debug “Vagrant cannot forward the specified ports on this VM” message

Question

I\'m trying to start a Vagrant instance and getting the following message:

Vagrant cannot forward the specified ports on this VM, since they
would collide wi         


        

Answer 1

Vagrant.configure("2") do |config|

config.vm.network "forwarded_port", guest: 80, host: 8080,

auto_correct: true

end

The final :auto_correct parameter set to true tells Vagrant to auto correct any collisions. During a vagrant up or vagrant reload, Vagrant will output information about any collisions detections and auto corrections made, so you can take notice and act accordingly.

https://www.vagrantup.com/docs/networking/forwarded_ports.html