Dear All,
Am getting this error when trying to import the old invoices.
the totals match and everything looks okay with my data.
I read around this error and it seems this bug was reported however I didn’t get any solution mentioned in anywhere on GitHub and also in the forum.
Please help me! 
Regards
Chetan
Hello All,
Anyone knows about this ?
Regards,
Chetan
Thanks Community for not helping It only made me determined to help my self. I was able to fix this.
Below is the solution.
In my case I was import old sales invoices and in the Payment Schedule section I had mentioned Payment Amount, however since the invoice Portion percentage was missing it was not able confirm about the payment amount hence it was throwing the exception. Below is the screenshot
