how to solve this error 'Undefined function or variable 'uiopen'.'

I am facing problem in opening any file in matlab.It is showing this error "Undefined function or variable 'uiopen'." in command window.With this this window is shown in figure.

How can I solve it?

[Adam Danz]

Does the problem persist after closeing and reopening Matlab?

Sharing the entire error message printed to the command window may be helpful.

[riya shahrin]

[Adam Danz]

I wonder if your path is corrupt.

which uiopen
% C:\Program Files\MATLAB\R2019b\toolbox\matlab\uitools\uiopen.m

The command above should show the location of the uiopen function. You could search your program files to confirm that you have that file.

[riya shahrin]

My uiopen path is correct.I am having this problem after running xlsread('files','range') this command.It will be very helpfull if you can help me to figure out this problem.

[Adam Danz]

xlsread('files','range') : Just to be clear, you have an xlsx file named "files.xlsx", correct? Because the filename input assumes the extension if it's not provide. Also, is the 2nd input a xlRange or sheet value? If it's a sheet value then it's fine as long as there's a sheet named 'range' but if it's supposed to be an xlRange value, then the input is incorrect.

Nevertheless, I don't know what's causing this error. Is this the only time you receive this error?

Have you tried using readtable instead?

[riya shahrin]

after changing the excel file and its path,my problem was solved.Thanks for helping.

[Adam Danz]

Good! Using full paths is the way to go. In case you're not already aware, fullfile(path, filename) is a useful function.