broken handler for custom handlers I'm using Drupal 7 with views 3.

I have defined a custom handler for a field and is working on my development machine. When I revert same view in live environment I am getting issue of broken handler, even the handler class s present. 

Thanks in advance for your help.
I have fixed this issue by using hook_views_data_alter(). Earlier the custom handler for the select field was defined in hook_views_data().