How to Add Facebook Like Box in Blogger?

In order to add facebook like box at side bar of blogger go to Facebook Widget Generator
Now type your facebook page URL as show in below red rectangle. Now click on the button saying Get Code as shown above in blue rectangle.

Two sets of code will appear just copy first one which is shown in red and paste it into the body section of your blogger blog HTML. for more assistance watch the video above.

Thereafter go to your blogger's Layout section and click on Add a Gadget, SelectHTML/Java Script and paste blue code in it.

Few of my friends told me that he is getting following error

 Error parsing XML, line 1950, column 64: The reference to entity "version" must end with the ';' delimiter 

In order to remove this error just replace

   js.src = '//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.5';

with

   js.src = '//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.5';