MATLAB 2018b readtable error after update

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Have a script using
readtable
to read from a .csv file.
Worked fine before a MATLAB update but now no matter how I use readtable, I get this error:
Error using readtable (line 216)
An error occurred while trying to determine whether "readData" is a function name.
How can I fix this? Thanks
  2 Comments
Annette Hynes
Annette Hynes on 4 Feb 2019
I got a different error when using:
readtable('file.csv')
Error using readtable (line 216)
Delimiter must be a string array, character vector, or cell array of character vectors.
Note: readtable detected the following parameters:
'Delimiter', ',', 'HeaderLines', , 'ReadVariableNames', true, 'Format', ''
I also uninstalled and reinstalled R2018b, and 'readtable' seems to be working now.

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Accepted Answer

Christina Chu
Christina Chu on 25 Jan 2019
Thanks all for the suggestions. I reinstalled MATLAB 2018b today and that fixed the problem. Going to stay away from the update button.
  1 Comment
Stephan
Stephan on 28 Jan 2019
i dont rhink this is a good idea. maybe things went wrong, but in general i would recommend to update.

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More Answers (2)

Jeremy Hughes
Jeremy Hughes on 24 Jan 2019
This is an installation issue. Although this might not resolve the issue try
>> restoredefaultpath
>> rehash toolboxcache
You can check
>> which readData -all
The correct version for readtable is ...matlab/toolbox/shared/io/+matlab/+io/+internal/+text/TableParser.m
If there's something else, then try temporarily renaming the others or removing their folders from the path.
If this still doesn't work you might need help from tech support.
  3 Comments
jonathan preussner
jonathan preussner on 30 May 2019
Edited: jonathan preussner on 30 May 2019
I had a readtable error involving " too many arguments" and this worked for me
NICOLE MIN
NICOLE MIN on 19 May 2020
I had this issue, please help. ive tried all the possible solution but no avail .

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Ilario Gelmetti
Ilario Gelmetti on 24 Jan 2022
In my case it's a problem with the libraries Matlab includes, so on Arch Linux I solve like this:
Preloading libfreetype library prepending this
LD_PRELOAD=/usr/lib/libfreetype.so.6
to the terminal command I use for running Matlab.
So for R2018a the full command is:
LD_PRELOAD=/usr/lib/libfreetype.so.6 /usr/local/MATLAB/R2018a/bin/matlab

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