How can I handle Diagnostic error in script???

Hi all,

I create testcases excel file from Simulink Test Manager by following command.

tf = sltest.testmanager.TestFile('exTest.mldatx');
ts = tf.getTestSuites;
tc = ts.getTestCases;
% Set up tc . . .

input = createInputDataFile(tc,'input.xlsx');

But when I use createInputDataFile function, Diagnostics put error as:

I used try - catch, but can't handle this error.

Do anyone can help me?

Thank you