Circular column longitudinal rebar count cannot be less than 6.

his message is given with the element and story name at the beginning of the report

For example, C1, 1st floor, Circular column longitudinal rebar count cannot be less than 6.

in TBDY Article 7.3.2.1, no longitudinal rebar less than φ14 will be used in columns and no less than 6 pieces of rebar will be used in circular columns. You receive a warning because this condition is not met.

Solution :

Use at least 6 rebars in the columns where the error message is given