[Box 16 in T4 empty]

Ufile cannot calculate my tax return due to this error;
“You have employment income and are not exempt from paying CPP/QPP contributions. You should normally enter your CPP contributions (Box 16) or QPP contributions (box 17)in your T4 slip.”

even if i put exemption(rare!) in box 28. I keep getting the error. My employer says box 16 is really empty because my earning is $375 for couple of days work. 
Until bow I can’t file my tax

[T4 With Empty Box 16 - Employee's CPP Contributions]

Contacted my employer and says they that box 16 is really empty. My earnings in the other employer is just $375. 

[T4 With Empty Box 16 - Employee's CPP Contributions]

I am having the same problem ufile cannot calculate my tax return due to this error 

“You have employment income and are not exempt from paying CPP/QPP contributions. You should normally enter your CPP contributions (Box 16) or QPP contributions (box 17)in your T4 slip.”

I tried to put exempted in box 28 but still getting error.

Box 16 is empty.

Until now I can’t file my tax return