Get your taxes done using TurboTax

When TurboTax checked the return for errors, I get a message of "Check this entry".  It reads "Sch K-1 Wks-Partnerships: Box 16 Description -1 has been entered for more than one type of income.  Use separate K-1 worksheets to report more than one type of foreign gross income source at the entity level. I don't know what this means and what I should put in. This is first time dealing with Limited Partnerships, K-1 and am at a loss.