Matlab not recognizing the file within directory

I've had this issue once and this is the second time. When I'm running a file whose path has already been set and all the relevant folders have been added, Matlab is simply not recognizing the file. Its giving me an error "Undefined function or variable 'myFile'". I did resolve the first time by copying the code to a new script and saving them in different location and this is the second time that it has occurred. How could I resolve this matter?

And yes, its just one piece of code file that is getting the error, the rest o my previous matlab works are running successfully.

[Jan]

How is the M-file called exactly?

Answer 1

[Walter Roberson]

Try giving the command

rehash toolbox

[Ayesha]

Nothing happened. That's very strange even though codes in other folders are running fine.

[Walter Roberson]

Try

clear all
close all
rehash toolboxreset; rehash toolboxcache

and try again.

[Ayesha]

No effect :(

[Walter Roberson]

What does

which MyFile

report? And

!ls My*.*

Also just in case... please check that you did not mix up digit one ('1') and lower-case L ('l') in the name of the file or the place you are calling it.

[Ayesha]

EDU>> which MyFile
'MyFile' not found.
EDU>> !ls My*.*
'ls' is not recognized as an internal or external command, 
operable program or batch file.

[Walter Roberson]

Try

ls My*.*

without the '!' before it. (You had not indicated the OS you were using and I guessed incorrectly.)