not enough input arguments

i have the following code

function importfile(fileToRead1)
%IMPORTFILE(FILETOREAD1)
%  Imports data from the specified file
%  FILETOREAD1:  file to read

%  Auto-generated by MATLAB on 20-Jan-2020 16:22:01

% Import the file
newData1 = load('-mat', fileToRead1);

% Create new variables in the base workspace from those fields.
vars = fieldnames(newData1);
for i = 1:length(vars)
    assignin('base', vars{i}, newData1.(vars{i}));
end

and got the error when run the code

Not enough input arguments.

Error in importfile (line 9)
newData1 = load('-mat', fileToRead1);

Answer 1

[Guillaume]

Clearly, you've called the function without any input argument. Possibly, you've clicked on the green run button which is not going to work.

You need to give the name of the file to read when you call the function

%code that calls importfile:
importfile('C:\somewhere\somematfile.mat')