My business was incorporated in 2017, there is no activity on that business, I am also employed .....whats your advice just file T4 ? or both T2 and T4 ?

All resident (Canadian) corporations — including non-profit organizations, tax-exempt corporations, and inactive corporations — have to file a T2 return for every tax year, even if there is no tax payable. So you would have to submit a T2 for your corporation and a T1 for your personal income tax.