Node 6 - TypeError: mod.lastIndexOf is not a function

[Alex0007]

node-dev index.js 

/home/alex/.nvm/versions/node/v6.0.0/lib/node_modules/node-dev/lib/index.js:120
  var i = mod.lastIndexOf(n);
              ^

TypeError: mod.lastIndexOf is not a function
    at getPrefix (/home/alex/.nvm/versions/node/v6.0.0/lib/node_modules/node-dev/lib/index.js:120:15)
    at getLevel (/home/alex/.nvm/versions/node/v6.0.0/lib/node_modules/node-dev/lib/index.js:110:11)
    at /home/alex/.nvm/versions/node/v6.0.0/lib/node_modules/node-dev/lib/index.js:77:45
    at ChildProcess.handleMessage (/home/alex/.nvm/versions/node/v6.0.0/lib/node_modules/node-dev/lib/ipc.js:19:43)
    at emitTwo (events.js:111:20)
    at ChildProcess.emit (events.js:191:7)
    at handleMessage (internal/child_process.js:718:10)
    at Pipe.channel.onread (internal/child_process.js:444:11)

Node 6
OS: Linux

[fgnass]

Thank you! That's really strange. The tests pass on Travis CI under Node 6.0.0 – Would you mind quickly cloning the repo to see if npm i && npm test fails on your machine?

[Alex0007]

Tests are passed.

Reproduce this error: https://github.com/Alex0007/node-dev-bug
Also i've checked Node 5 and error remains

[fgnass]

Thanks again! Fix published as part of v3.1.1.

[VietDucPhan]

The issue is still present in node 6.3

[fgnass]

Which version of node-dev are you using?

[VietDucPhan]

@fgnass I used 6.3.0 the last time i checked. but now when i check version or do node-dev.
it show

module.js:442
    throw err;
    ^

Error: Cannot find module 'clone'

[swapnil-tnex]

Node - v6.11.1
'TypeError: o.file.lastIndexOf is not a function' getting same error. OS is windows 10

[codesorter2015]

function getFileExtension(filename) {
return filename.slice((filename.lastIndexOf(".") - 1 >>> 0) + 2);
}

I'm getting the following errors:
(node:21156) UnhandledPromiseRejectionWarning: TypeError: filename.lastIndexOf is not a function
at getFileExtension (F:\galaxy\app.js:227:37)