Why is the MATLAB path cleared when I try to add a directory using the PATHTOOL or ADDPATH functions in MATLAB 7.0 (R14)?

When I use the PATHTOOL function to add a path to my directory, the path listing becomes blank and MATLAB can no longer find any functions. This also happens when I try to use the ADDPATH function to add a directory. For example, the following commands:

addpath('c:\')
path

result in the following error:

ERROR: ??? The path may be bad.  Please save your work (if desired), and quit.

When using PATHTOOL, the directory listing goes blank.

Answer 1

[MathWorks Support Team]

This bug has been fixed for Release 14 SP1 (R14SP1). For previous releases, please read below for any possible workarounds:

This has been verified as a bug in MATLAB 7.0 (R14) in the way that MATLAB handles an environmental variable called ICU_DATA on the system PATH.

For information about how to resolve this issue, see the following solution:

https://www.mathworks.com/matlabcentral/answers/101460-why-am-i-experiencing-problems-with-the-international-components-for-unicode-icu-libraries-in-matl