Initial settings

[alemalta]

Hi,

Now I have Perforce visual client and it works well. When I run this GULP task

var p4 = require('node-perforce');
var gulp = require('gulp');
var gulpP4 = require('gulp-p4');

gulp.task('default', function() {
p4.changelist.create({description: 'hello world'}, function (err, changelist) {
if (err) return console.log(err);
console.log('changelist:', changelist);
});
});

I have this error in console
$ gulp
[17:52:13] Using gulpfile c:\Dev\perforce\gulpfile.js
[17:52:13] Starting 'default'...
[17:52:13] Finished 'default' after 6.45 ms
{ [Error: Command failed: C:\Windows\system32\cmd.exe /s /c "p4.exe change -i "
Client 'IT04' unknown - use 'client' command to create it.
]
killed: false,
code: 1,
signal: null,
cmd: 'C:\Windows\system32\cmd.exe /s /c "p4.exe change -i "' }

I need to write credentials somewhere and most probably do some settings as well. I am new with communication between Perforce and Node.js. Can you please give a bit of links/references/ideas for initial settings before using your plugin. I mean how to setup Perforce to be able run your functionality from GULP tasks. What I need to do first to be able to use your code examples from
https://www.npmjs.com/package/node-perforce

thanks a lot in advance,
Alex