severe problems opening files with Matlab 2018a
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Jason Jury
on 18 Jun 2018
Commented: Walter Roberson
on 14 Dec 2018
When I try to open a file in Matlab 2018a, I get the following error:
>> open check_adc_vs_fir_samples.m
Error using open (line 146)
PATTERN must be a string scalar or character vector.
Cannot open file using dialog box either, I get same error message popping up as error dialog.
I'm an expert user of Matlab over 15 years, this is the first version of Matlab that I've seen this error. Normally I'm able to debug but can't resolve this on my own. Need Mathworks support.
1 Comment
Walter Roberson
on 18 Jun 2018
Can you do
which -all open
I suspect that you have an open.m on your path that is not provided by Mathworks.
Accepted Answer
More Answers (4)
Thomas Arnold
on 2 Nov 2018
You can also try typing restoredefaultpath into the terminal, that should remove any conflicting files.
1 Comment
Alessandra Caporale
on 20 Nov 2018
Thank you!!! I would like to share my experience with you, with the hope it might help someone in the future!
In my new desktop pc with Windows 10 installed, I was trying to get rid of OneDrive, and I had moved all the files that were in OneDrive\Documents into myPC\Documents. Now during this process, by opening Matlab I got this message
Warning:
"C:\Users\username\OneDrive\Documenti\folder\subfolder
selected using the Last Working Folder preference could not be accessed.
Using "C:\Users\username\Documents\MATLAB" as the initial working folder instead.
Within my myPC\Documents I could open all the MATLAB figures, but I couldn't open any of the scripts (.m files) contained in the script folder. When I tried to do it, I got the error dialog box 'Error using open (line 146) PATTERN must be a string scalar or character vector'.
Solution:
I typed restoredefaultpath in the command window, and now it works nicely!
Thank you!
Jason Jury
on 18 Jun 2018
1 Comment
Walter Roberson
on 18 Jun 2018
In your Preferences, Editor/Debugger, do you have MATLAB editor selected, or Text Editor with a program name?
DelfinDelfin
on 14 Dec 2018
I have the same problem .. Whey I type
which -all open
I get:
C:\Program Files\MATLAB\R2018a\toolbox\matlab\general\open.m
C:\Program Files\MATLAB\R2018a\toolbox\shared\asynciolib\+asyncio\Channel.m % asyncio.Channel method
open is a built-in method % asyncioimpl.Channel method
C:\Program Files\MATLAB\R2018a\toolbox\matlab\graph2d\@scribehandle\open.m % scribehandle method
C:\Program Files\MATLAB\R2018a\toolbox\instrument\instrument\@icdevice\open.m % icdevice method
C:\Program Files\MATLAB\R2018a\toolbox\shared\instrument\@instrument\open.m % instrument method
C:\Program Files\MATLAB\R2018a\toolbox\matlab\serial\@serial\open.m % serial method
C:\Program Files\MATLAB\R2018a\toolbox\sl3d\sl3d\@vrworld\open.m % vrworld method
C:\Program Files\MATLAB\R2018a\toolbox\simulink\simulink\upgradeadvisor\@UpgradeAdvisor\open.p % UpgradeAdvisor method
Help
1 Comment
Walter Roberson
on 14 Dec 2018
Try
restoredefaultpath
rehash toolboxcache
and then try again.
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