Solving Genymotion “unable to connect to your virtual device” Error

So I know you are here because you get this error message while starting a Genymotion Device.


First you should go check your firewall settings as suggested in the Genymotion FAQ. Other than that, if the problem still persist, 9/10 it’s the problem of your Host-only adapter settings. Here’s how to correctly set it. Continue reading

AngularJS minimal MVC example

Recently started to learn AngularJS, which is really a very good framework. It makes routes, Two way data binding and modular design easy.

I have created a minimal MVC example for beginners to get started with. This is a BMI calulator.

You can also try the jsFiddle here.

Convert Webp image to png under osx/linux

You can find the open source project here :

To build the tool from source

You can find the dwebp utility under “examples” folder

You can test it out using the test.webp in the same folder


Install Tex on CentOS linux

Actually it’s pretty easy with Yum group install, a lot of people didn’t even notice this

There you go! run “tex” or “latex” in the shell and it’s up and running.

Sometimes you also need dvipng to compile Tex into PNGs

Something about yum groups

if you want to see what packages is in this group, you can run:

If you want to see what other Package groups in yum, you can run