Trying to achieve SemiCircular progressBar

[sandeep-mahiti]

Hi, am trying to achieve semi/half circular progressbar using circularseekbar, as it is mentioned i changed start_angle to 0 and end_angle to 180. when i build, it shows error saying "No resource identifier found for attribute start_angle and end_angle". I have included my resource package inside circularseekbar class file. what did i miss? please help.