the evenizer commands are not getting executed.

[jatasya]

Hi I'm using evenizer which is being used in intl-tel-input repo, when I run grunt build I'm getting the below errors, can you please have have a look at this and can guide me in right direction in order to solve it.

In windows

                 λ grunt img
                     Running "responsive_images:retina" (responsive_images) task
                     Resized 257 files for 40x30

                     Running "exec:evenizer" (exec) task
                 >> C:\Users\Vikas VP\AppData\Roaming\npm\node_modules\evenizer\lib\evenizer.js:43
                 >>         throw err;
                 >>         ^
                 >>
                 >> Error: Command failed:
                 >>     at ChildProcess.<anonymous> (C:\Users\Vikas  VP\AppData\Roaming\npm\node_modules\evenizer\node_modules\imagemagick\imagemagick.js:88:15)
                  >>     at emitTwo (events.js:106:13)
                  >>     at ChildProcess.emit (events.js:191:7)
                  >>     at maybeClose (internal/child_process.js:877:16)
                  >>     at Socket.<anonymous> (internal/child_process.js:334:11)
                   >>     at emitOne (events.js:96:13)
                   >>     at Socket.emit (events.js:188:7)
                    >>     at Pipe._handle.close [as _onclose] (net.js:498:12)
                   >> Exited with code: 1.
                   >> Error executing child process: Error: Command failed: evenizer --resize -i src/img/flags/@2x/*.png
                     >> C:\Users\Vikas VP\AppData\Roaming\npm\node_modules\evenizer\lib\evenizer.js:43
                     >>         throw err;
                     >>         ^
                      >>
                      >> Error: Command failed:
                      >>     at ChildProcess.<anonymous> (C:\Users\Vikas VP\AppData\Roaming\npm\node_modules\evenizer\node_modules\imagemagick\imagemagick.js:88:15)
                      >>     at emitTwo (events.js:106:13)
                      >>     at ChildProcess.emit (events.js:191:7)
                      >>     at maybeClose (internal/child_process.js:877:16)
                      >>     at Socket.<anonymous> (internal/child_process.js:334:11)
                       >>     at emitOne (events.js:96:13)
                      >>     at Socket.emit (events.js:188:7)
                      >>     at Pipe._handle.close [as _onclose] (net.js:498:12)
                 
                      Execution Time (2017-01-12 18:54:21 UTC+5:30)
                      responsive_images:retina  36.5s      ████████████████████████████████████████████████████████████████████ 88%
                    exec:evenizer              4.8s  █████████ 12%
                    Total 41.3s

IN windows I have intalled imagemagick and below packages
λ npm list -g --depth=0
C:\Users\Vikas VP\AppData\Roaming\npm
+-- bower@1.8.0
+-- evenizer@0.1.17
+-- express-generator@4.14.0
+-- grunt-cli@1.2.0
+-- gulp@3.9.1
`-- windows-build-tools@0.6.1

I tried installing the environment in the vagrant ubuntu 14.04
when the command "Running "exec:evenizer" (exec) task" is being run it is getting automatically killed

               vagrant@vagrant-ubuntu-trusty-64:/vagrant/code/intl-tel-input$ grunt build
                Running "responsive_images:retina" (responsive_images) task
                Resized 257 files for 40x30

                Running "exec:evenizer" (exec) task
                Killed

I tried this "If when building, you get an error in the "exec:evenizer" task, you may need to temporarily increase the ulimit by running this command: ulimit -S -n 2048" even then also I'm getting the command getting killed.

In vagrant I have below packages
/usr/lib
├── bower@1.8.0
├── evenizer@0.1.17
├── grunt-cli@1.2.0
└── npm@3.10.10