Problems with repeated values found in matrix using mlogit

[dindays]

Dear all,

I ran an estimation using mlogit command and I received an error message :

repeated values found in __000001 matrix

r(459);

I searched some answers when they suggested to use :

if _N == 0 continue

before my mlogit command but it still doest not work.

Does anyone know how to fix this problem?

Could it be possible because I have more than 5 discrete dependent variables?

Thank you.

Daim