Error in [Classname].[DLLname] occurred in Excel function created from matlab function

I described simple function

function [ ret ] = getSumVector( vector )

ret = sum(vector);

end

named getSumVector.m. And I would like to use this function in Excel. So, I built the excel add-in using matlab compiler (2013a). It generated following files in distrib directly

• getSumVector.bas
• getSumVector_1_0.dll

Next,I put getSumVector.bas in add-in file thorough VBA. Though I used getSumVector function in excel, the error occurred .

How should I do to use matlab function in excel in correct?