edgemicro reload command errors using node.js LTS 8.*

Google Cloud Apigee
1 
We get errors when we try command of "edgemicro reload" as below. We are using 8.11.4 as recommend. Could you kindly help advise what the issue of it?

current nodejs version is v8.11.4
current edgemicro version is 2.5.25
/usr/local/lib/nodejs/node-8.11.4/lib/node_modules/edgemicro/cli/cmd.js:249
            options.error = optionError;
2

Error Logs more:

TypeError: Cannot create property 'error' on string '-'
    at Command.commander.command.option.option.option.option.option.option.description.action (/usr/local/lib/nodejs/node-8.11.4/lib/node_modules/edgemicro/cli/cmd.js:249:27)
    at Command.listener (/usr/local/lib/nodejs/node-8.11.4/lib/node_modules/edgemicro/node_modules/commander/index.js:315:8)
    at emitTwo (events.js:126:13)
    at Command.emit (events.js:214:7)
    at Command.parseArgs (/usr/local/lib/nodejs/node-8.11.4/lib/node_modules/edgemicro/node_modules/commander/index.js:651:12)
    at Command.parse (/usr/local/lib/nodejs/node-8.11.4/lib/node_modules/edgemicro/node_modules/commander/index.js:474:21)
    at setup (/usr/local/lib/nodejs/node-8.11.4/lib/node_modules/edgemicro/cli/cmd.js:544:15)
    at Object.<anonymous> (/usr/local/lib/nodejs/node-8.11.4/lib/node_modules/edgemicro/cli/edgemicro:49:21)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Function.Module.runMain (module.js:693:10)
    at startup (bootstrap_node.js:191:16)
    at bootstrap_node.js:612:3
3

Sorry this is command typo. Please ignore it.