[PM2] Spawning PM2 daemon with pm2_home=/home/sufubo/.pm2

Pm2 start the application run time, reported the following error

[PM2] Spawning PM2 daemon with pm2_home=/home/sufubo/.pm2

View log

/usr/lib/node_modules/pm2/node_modules/chokidar/index.js:151
  async remove(item) {
        ^^^^^^

SyntaxError: Unexpected identifier
    at createScript (vm.js:56:10)
    at Object.runInThisContext (vm.js:97:10)
    at Module._compile (module.js:549:28)
    at Object.Module._extensions..js (module.js:586:10)
    at Module.load (module.js:494:32)
    at tryModuleLoad (module.js:453:12)
    at Function.Module._load (module.js:445:3)
    at Module.require (module.js:504:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/usr/lib/node_modules/pm2/lib/Watcher.js:6:16)

The original version is pm2 too, because my nodejs version is v6.17.1.
Solutions, solve installation low version pm2

npm i [email protected] -g