issues starting any app or the web interface: command hangs and exception found in log

[kilnan]

Just as the title states, if I try

pod start myapp

or

pod web start

the command hangs, and in pm2.log I find this

2018-01-05 13:02:33: [PM2] Error caught by domain:
TypeError: "listener" argument must be a function
    at ChildProcess.removeListener (events.js:360:15)
    at workAround (/usr/lib/node_modules/pod/node_modules/pm2/lib/God.js:130:20)
    at nodeApp (/usr/lib/node_modules/pod/node_modules/pm2/lib/God.js:159:7)
    at Object.nodeApp (/usr/lib/node_modules/pod/node_modules/pm2/lib/God/ClusterMode.js:78:12)
    at Object.executeApp (/usr/lib/node_modules/pod/node_modules/pm2/lib/God.js:145:9)
    at ex (/usr/lib/node_modules/pod/node_modules/pm2/lib/God.js:361:18)
    at prepare (/usr/lib/node_modules/pod/node_modules/pm2/lib/God.js:367:7)
    at Server.onmessage (/usr/lib/node_modules/pod/node_modules/pm2-axon-rpc/lib/server.js:105:6)
    at emitTwo (events.js:125:13)
    at RepSocket.emit (events.js:213:7)

pm2 version: 0.12.16
pod version: 0.9.0
node version: 8.7.0
npm version: 4.6.1

[kharhys]

The problem here seems to be an old pm2 peer dependency. Luckily, it was solved and merged in this pull request before 0.9.1 version bump.
However on npm the latest version available is 0.9.0 (as of writting this comment). You have to install from github instead of npm if you want 0.9.1.
This is as simple as replacing pod with git+https://github.com/yyx990803/pod.git in you npm install or yarn add command.

Your dependencies should now look like this. (And your error would be no more, hopefully!)
npm ls -depth 0 -g
├── npm@5.5.1
├── pm2@2.7.2
└── pod@0.9.1 (git+https://github.com/yyx990803/pod.git#97a546c2c632466898947a6ad3480ce6e7e4f99e)