Cannot find module 'envify' from '...\node_modules\react-widgets'

[wzup]

Trying to build vendors bundle with browserify I've received this error:

Cannot find module 'envify' from '...\node_modules\react-widgets'

Why? How to solve?

Here is my gulp task to build vendor bundle:

   var vendors = ['jquery',
        'react',
        'react/addons',
        'react-dom',
        'moment',
        'react-intl',
        'react-widgets/lib/DropdownList'
];
    var b = browserify({
        debug: true,
        noParse: vendors,
        transform: ['babelify'],
        require: vendors
    });
    b.bundle()
        .on('error', function(err) {
            console.error(err.message);
            this.emit('end');
        })
        .pipe(source('vendors.js'))
        .pipe(gulp.dest('./public/js'));

UPD:

Here is your package.json:
1)

Being specified as devDependencies it is not either installed or smth. So the solution might be somewhere here, I think.
More readings for you remix-run/react-router#105

[jquense]

dup #308