We are aware of this issue, and our development team is working on a resolution. Once it is resolved, we will update you in this thread. We appreciate your patience.

Thanks for letting me know. I will await your update after it has been fixed. Thanks

Was there a resolution to this question?

I am still unable to submit due to the error code for this exact problem

Please double check what you have entered on the T1198 form.

Line 68518 Total amount (principal and interest) must be the same amount as Line 68519 - Total principal (current and prior years) PLUS Total interest (current and prior years). 

Also, Line 68519 - Total principal (current and prior years) must be the same as the total amount of total of boxes 68520 through 68560 added together.

You can see lines 10100, 10400, 12799, 12800 and 13000 on your detailed tax summary. 

I am having this same issue. On T1198, line 68519 is the same as line 68518. However, line 68519 is, in fact, greater than the sum of lines 10100, 10400, 12799, 12800 and 13000 because there is no income reported on these lines for the return that I am doing. The only income reported on T1 General is found on lines 11400 and 11500. This software error is preventing me from submitting the tax return electronically which means CRA will not be able to do their manual calculation. Will this error be fixed soon?