R custom visual - Error in eval(substitute(expr), data, enclos = parent.frame()) : object 'tickvals

Gurus,

Can somebody please help me in solving this - i have been trying to search everywhere but i cannot get the answer. 

Currently i am running a R custom visual which works perfectly well in my RSTUDIO and PowerBI Desktop but when i publish that to powerbi service is where i am getting the error as mentioned in the subject. ( Object tickvals not found)

Error in eval(substitute(expr), data, enclos = parent.frame()) : object 'tickvals' not found

please let me know if you are looking for more details.